tall (15-60 cm) and mixes extraordinarily well with all other annuals and perennials. They are about 18 inches in height with blue flowers. Several dwarf varieties are commonly used as edging plants. The editors are not aware of records of the presence of this speciesin Uganda, though this does not necessarily mean that it is absent from this country. 50 seeds 153062: £5.75: In stock [?] A. houstonianum is naturalised in Kenya at 1500-2780m altitude. Ageratum houstonianum. Ageratum (/əˈdʒɛrətəm/)[2] (whiteweed in the USA) is a genus of 40[3] to 60 tropical and warm temperate flowering annuals and perennials from the family Asteraceae, tribe Eupatorieae. Panicles of blue, pink, purple, or white flowerheads arise from oval, downy leaves in midsummer and continue until frost. Will do well if grown in a pot or container. Acamovic, T., Stewart, C.S., Pennycott, T.W.,"Poisonous Plants and Related Toxins", 2004. More than 60 cultivars of the blue ageratum flower are available, … Plant Dimensions: 24"–30" tall, 8"–12" wide. The flowers are blue, purple, lilac and cream colors. Ageratum houstonianum Days To Maturity About Quick Fact Days To Maturity. 30cm height . Bloom Period: Summer to frost . These are some rugged plants that can withstand tough soil conditions and even deer! The flowers are blue, purple, lilac and cream colors. Instead, the public now uses the genus name so frequently that it doubles, in essence, as a second common name. Plant in amongst other shrubs or perennials in full sun or part shade in general … They have toothed ovate leaves arranged oppositely along the stem. Ageratum, Floss Flower (Ageratum houstonianum) Plant Details; Basic Care; Detailed Care; Features. ... (30 cm.) Tall ageratum are also available in seed catalogues. Annual growing to 30cm. The common garden ageratum (A. houstonianum), also known as floss flower and blue mink, is frequently cultivated as an ornamental annual. Tolerates light shade, and prefers some light afternoon shade in hot summer climates. The plant grows to 0.3–1 m high, with ovate to triangular leaves 2–7 cm long, and blue flowerheads (sometimes white, pink, or purple). Ageratum Houstonianum Posted on November 18, 2008 | Leave a comment The flossflower species is an annual that grows to a height of over 2 ft (0.6 m), has blue flowers, and tends to become a pest as it liberally reseeds itself all over the garden. Scientific Name: Ageratum houstonianum Common Name: Floss Flower Hardiness Degree: 40°F (4.4°C) Blooming Season: Spring, Summer, Late Summer Plant Habit: Upright Characteristics: Attracts Bees, Low Maintenance Will do well if grown in a pot or container. Good for beds, borders, pathways and rockeries. Height: 50cm (20"). POSITION & USES . Description: Ariella Blue is a quick growing, compact mounding plant that grows to a height and width of 30cm x 30cm. There are two types of shrubs: Easy to grow, blue ageratum grows in compact mounds that generally reach a height of 1-2 feet. Most common ageratums, "Hawaii" for example, are a short 6-8 inches when full grown. Ageratum houstonianum is invasive in parts Tanzania (Henderson 2002). More. & Wurdack) R.M.King & H.Rob. They form tussocks or small hills. Compact plants with dark green ovate leaves and small rounded brush-like flowers in white. They are quite easy to grow, producing a profusion of fluffy flowers all season long. The leaves of the plant are oval at the stem and triangulate out, reaching a length of 1 to 3 inches (2.5 to 7.5 cm). The Ageratum houstonianum or Floss Flower as it is more commonly known, belongs to the Asteraceae family - the same very special family to which the Daisies, Asters, Gerberas, Chrysanthemums and so many others all belong. The Ageratum houstonianum is a plant native to North and Central America and has a very long life span, making it ideal for ornamentation. How to grow Ageratum 'Blue Mink' Plant size. Exposure: Full sun to part shade. Ageratum (/ ə ˈ dʒ ɛr ə t ə m /) (whiteweed in the USA) is a genus of 40 to 60 tropical and warm temperate flowering annuals and perennials from the family Asteraceae, tribe Eupatorieae. Heat tolerant and attractive to butterflies, Ageratum are perfect for bringing long lasting color and definition to summer containers and garden beds. Beds and borders, City, Containers, Cottage/Informal, Hanging baskets. Aspect. Ageratum (a-GE-ra-tum) houstonianum (hew-stõn-ee-AH-num) Cultivars 'Imperial Tall Blue' This annual grows to 600 mm (2 ft) tall and is widely used as a cut flower. Learn More in these related Britannica articles: Asteraceae. They are best used as bedding, edging, or container plants. tall (15-60 cm) and mixes extraordinarily well with all other annuals and perennials. Plants tend to wilt quickly if soils are allowed to dry out. With good cultivation care you can enjoy this plant with great benefits and an invaluable aesthetic value. One of the tallest, Ageratum houstonianum 'Blue Horizon' (Floss Flower) features fluffy round clusters of lavender to purplish-blue flowers resembling asters. The flowering period is from May to November in the northern hemisphere. Hardiness: Annual. Habit: Dwarf, Ground Cover. Cultivation. A nonstop bloomer from mid summer to fall (Ageratum means 'long-lived' in Greek), it grows easily in shapely mounds ranging from 6-24 in. Ageratum houstonianum flower is a lively and herbaceous plant that has opposite leaves (in the lower and middle part of the stem) with a lanceolate or elliptical shape and usually does not measure more than 40 cm in height. Most often you can see the blue flowers of various hues in gardens and parks. Most often you can see the blue flowers of various hues in gardens and parks. Not to mention, ageratum is one of the truest blue annuals you can find! Ageratum, (genus Ageratum), any of about 40 species of herbs in the genus Ageratum (family Asteraceae). To add more height to your flower beds, choose a variety such as "Blue Horizon" and "Red Top," which reach heights of 24 to 30 inches. An old favorite with its fluffy round clusters, Ageratum houstonianum (Floss Flower) is one of the few annuals to tolerate light shade. Common Name: Blue Mink: Habitat: ** Associated Ecological Communities: ** Growth Habit: Herb: Duration: Perennial: Category: Vascular: USDA Symbol: ** Plant Notes: Floss Flower is an introduced annual in the Aster family (Asteraceae). Spent flowers will fall to the ground as they fade to be replaced by new bloom throughout the growing season. Prompt deadheading of the faded flowers is not necessary, but keeps a planting tidy and tends to promote a better uninterrupted bloom. Seed may also be sown directly in the garden after last frost date, however flowering season will be shorter (late summer to frost). This article was most recently revised and updated by Melissa Petruzzello, Assistant Editor. A. houstonianum is the most popular variety, in shades of white, blue and mauve. Botanical Name: Ageratum houstonianum (hybrid) Family: Asteraceae. The leaves form compact clusters. Zones: Usually grown as an annual; perennial in Zones 10-11. Will grow in Full Sun Good for Cutting Half-hardy Annual Loved by Pollinators RHS Award of Garden Merit Be the first to review this product! Panicles of blue, pink, purple, or white flowerheads arise from oval, downy leaves in midsummer and continue until frost. A nonstop bloomer from mid summer to fall, it grows easily in shapely mounds, up to 18-30 in. F1 Hybrids 'Blue Angel' This annual grows to 250 mm (9¾ in) tall and produces lavender blue flowers. Ageratums offer soft, round, fluffy flowers in various shades of blue, pink or white—with blue being most common. Uses. Ageratum houstonianum a-jer-AY-tum hoos-tone-ee-AY-num Audio There are many cultivars available of this fast-growing annual. Good cultivars include: 'Adriatic', mid-blue flowers.Height 6in (15cm). The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Watch for aphids and whiteflies. Powdery mildew is an occasional problem, particularly in hot and humid climates where soils are kept on the dry side and air circulation is poor. Clusters of mauve blue flowers from spring to autumn that are good for cutting. Asteraceae (Queensland, New South Wales, the ACT, Victoria, Tasmania, Western Australia and the Northern Territory) Compositae (South Australia) They are best used as bedding, edging, or container plants. They give small, dry fruits. Noteworthy Characteristics. Height: 1.2m: Width: 50cm: Categories: Blue Flowering, Romantic Plants. Color: White flowers, green foliage ‘Aloha’ is one of … Native to the Americas, but primarily Mexico and tropical South America, Ageratum species can be annuals or perennials. Ageratum houstonianum. Useful Links: How to sow flower seeds Reasons to buy your seeds from Thompson & Morgan. Aloha is early to flower and suited for growing in packs and in 10 cm (4 in.) Easily grown in average, moist, well-drained soils in full sun. FLOWERS. For gardeners who do not wish to use seed, live plants are available from many nurseries in cell packs/six packs and flats. [4][5][6][7], Ageratum conyzoides and Ageratum houstonianum are prone to becoming rampant environmental weeds when grown outside of their natural range. Most species are native to Central America and Mexico but four are native to the United States.. Ageratum houstonianum, a native of Mexico, is among the most commonly planted ageratum varieties. Noa, M., Sanchez, L.M., Durand, R., "Ageratum houstonianum toxicosis in Zebu cattle", Veterinary and human toxicology, 2004, vol.46, no4, pp.193-195. Producing large clusters of brilliant blooms, this makes an excellent cut flower as well as looking beautiful in drifts in garden borders. It is an excellent type for mass production. Ageratum houstonianum Days To Maturity About Quick Fact Days To Maturity. There is also a medium height snowcapped variety, white top on blue flowers. Plant Habit : Upright. Plant it with Bupleurum for a particularly eye catching combination. Leaves are typically rounded, cordate-at-the-base, hairy, slightly quilted and soft green. They form tussocks or small hills. The blues are most popular and common, but colors also include violet, pink and white. Spread: 25cm (10"). Advertisement. They grow to a height of 30 in. 30cm height . There is also a medium height snowcapped variety, white top on blue flowers. There are many cultivars available of this fast-growing annual. It is native to Mexico and Central America. Height 50cm (20"). The rounded leaves do not add any aesthetic value to the plant. Specifically in the highlands: Mau, Aberdares, parts of Laikipia and Nyeri. Ageratum houstonianum forma luteum Ageratum houstonianum Miller, forma luteum B. L. Robinson, Contr. Grower Information : Seed supplied as: Pelleted. Ageratum houstonianum, commonly known as flossflower, bluemink, blueweed, pussy foot or Mexican paintbrush, is a cool-season annual plant often grown as bedding in gardens. Height: 25cm(10in) Width: Depth: Plant Class: Half Hardy Annual (HHA). A very vigorous plant with strong, sturdy stems, many branches and larger flowers than the traditional ageratum. Native: Southern Mexico, Belize, and Honduras. Tall ageratum are also available in seed catalogues. Seeds are tiny and difficult to work with, particularly for direct outdoor plantings. Ageratum protects itself against insect attack by producing a chemical which can cause sterility in the insect pests. Flossflower (Ageratum houstonianum) The Flossflower is an annual Ageratum species, that can range in height from 12 to 39 inches (30 to 100cm). Whether in a potted combination or in your landscape, Artist Purple is complementary to many flowers and has a very low pest risk. The strong vigor in the garden makes Aloha an excellent garden performer. Space taller varieties 12” apart and shorter varieties 6” apart. If a transplanted crop: average number of days from transplant date. They grow to a height of 30 in. Plants may not bloom to frost in some hot summer climates, but usually do so in cooler ones. Ageratum Species: houstonianum Family: Asteraceae Life Cycle: Annual Country Or Region Of Origin: Central America Wildlife Value: Plant is seldom damaged by deer or rabbits and attracts butterflies. Scientific Name : Ageratum houstonianum. Ageratum houstonianum originated in Central America and the West Indies. Growing On:Grow on at temperatures of 60-68 °F (15-20 °C). Most common ageratums, "Hawaii" for example, are a short 6-8 inches when full grown. Average number of days from seeding date to harvest, within a specific crop group. The name ‘ageratum’ comes from the Greek a- (without) and geras (age) as the petals retain their colour for a long time. Ageratum houstonianum. Flower Size: . Plug crop time: 4 weeks Transplant to finish: 7 to 9 weeks. Floss Flower is sometimes cultivated and is often a weed in nursery stock. Ageratum houstonianum, commonly called floss flower, is a frost-tender annual of the aster family that provides continuous bloom for beds, gardens or containers from late spring to frost.Features fluffy flowers (basically asters with ray flowers absent) in flattened to slightly rounded clusters atop compact, mounded plants generally ranging from 4” to 18” tall. Can be grown in containers. Try growing ageratum in wildlife gardens where they will attract butterflies to their blooms. Find help & information on Ageratum houstonianum 'High Tide Blue' from the RHS Height/Spread: 4 to 36 inches tall, 6 to 18 inches wide. Garden Ready Plants - Our garden ready plants are selected for garden performance, straight from the nursery. Species flowers are medium blue, however many cultivar… Similar ageratum houstonianum - Buy this stock photo and explore similar images at Adobe Stock Easy … The leaves of the plant are oval at the stem and triangulate out, reaching a length of 1 to 3 inches (2.5 to 7.5 cm). Some taller varieties (e.g., the triploid Blue Horizon) are more erect and grow to as much as 30 tall. The plant grows to 0.3–1 m high, with ovate to triangular leaves 2–7 … Do not exclude light or allow to dry out. Features fluffy flowers (basically asters with ray flowers absent) in flattened to slightly rounded clusters atop compact, mounded plants generally ranging from 4 to 18 tall. Some taller varieties (e.g., the triploid ‘Blue Horizon’) are more erect and grow to as much as 30” tall. Each of the tiny flowers ( florets ) which make up the flower-heads have two short and narrow projections ( style branches) that are about 1-2 mm long. 'Blue Blazer' This annual grows to 200 mm (7¾ in) and produces mid-blue flowers. A classic annual for any garden, ageratum is a tough plant that can even handle a bit of shade. Gray Herb. Genus Ageratum can be annuals, perennials or shrubs, usually bushy in habit, with simple ovate leaves and small fluffy blue, pink or white flower-heads in summer and autumn Details 'High Tide Blue' has a dense, upright habit and produces large, fluffy pale purple to … Clusters of mauve blue flowers from spring to autumn that are good for cutting. Posted on November 18, 2008 | Leave a comment. Species flowers are medium blue, however many cultivars are available in commerce in various shades of blue, pink, red, white and bicolor. Flossflower is the chief common name for Ageratum houstonianum. Shorter varieties are excellent as bedding plants, edgers (along paths, walkways and border fronts) and container plants (hanging baskets, window boxes, urns or other containers). Ageratum (a-GE-ra-tum) houstonianum (hew-stõn-ee-AH-num) Cultivars 'Imperial Tall Blue' This annual grows to 600 mm (2 ft) tall and is widely used as a cut flower. It grows to approximately 1 m in height. Several species of Ageratum are toxic, containing pyrrolizidine alkaloids. Ageratum houstonianum (flossflower, bluemink, blueweed, pussy foot, Mexican paintbrush) syn. A nonstop bloomer from mid summer to fall (Ageratum means 'long-lived' in Greek), it grows easily in shapely mounds ranging from 6-24 in. ageratum houstonianum - Buy this stock photo and explore similar images at Adobe Stock Ageratum plants grow from seed or from small seedlings sometimes found in garden centers. The compact, uniform plants bear large, fluffy, powder-blue flowers. Prefers rich soils with good drainage and consistent moisture throughout the growing season. Ageratum Houstonianum. When they are in their greatest splendor, they are the favorite to decorate the gardens thanks to their colorful blue color that adorns the exterior until after their season when they are discarded. The ordinary Ageratum is a perennial, herbaceous plant or a dwarf, or shrub. Blooming Season : Spring, Summer, Late Summer. The flowers are purple, blue, pinkish or white, less than 6 mm across, with around 30 to 50 flowers and arranged in close terminal flower-heads. Suggested uses. Ageratum houstonianum 'Timeless Mixed' is ideal for filling gaps in borders, adding height and texture to informal planting schemes. Mar 24, 2016 - Explore Shoot Limited's board "Ageratum", followed by 5755 people on Pinterest. Not to mention, ageratum is one of the truest blue annuals you can find! Ageratum houstonianum, a native of Mexico, is among the most commonly planted ageratum varieties. With a vigorous, open habit, it’s perfect for adding texture and colour to bedding, borders and containers, and is extremely attractive to pollinators. Grow Ageratum houstonianum ‘Blue Mink’ in moist but well-drained soil in full sun. See more ideas about Plants, Planting flowers, Prune. 1923. Ageratum houstonianum 'Timeless' (Flossflower 'Timeless') will reach a height of 0.5m and a spread of 0.2m after 1 year. Variety Information: ½" bluish-purple pom-pom-like flowers with feathery petals borne in clusters. With a vigorous, open habit, Ageratum houstonianum 'Blue Mink' is perfect for adding texture and colour to bedding, borders and containers. Characterized by their powder-puff flowers, these plants begin to bloom in late spring and keep the show going until the first frost. Middle . A great value plant that is free flowering and easy to grow. An old favorite with its fluffy round clusters, Ageratum houstonianum (Floss Flower) is one of the few annuals to tolerate light shade. Seed may be started indoors in late winter and transplanted outdoors after threat of frost has passed. Ageratums offer soft, round, fluffy flowers in various shades of blue, pink or white—with blue being most common. Grow Ageratum houstonianum ‘Blue Mink’ in moist but well-drained soil in full sun. Ageratums are grown for their flowers, especially A. houstonianum. In climates where powdery mildew is a problem, avoid overhead watering and site in areas with good air circulation. Scientific Name : Ageratum houstonianum Common Name : Floss Flower Blooming Season : Spring, Summer, Late Summer Plant Habit : Upright Spacing : 12 - 18" (30 - 46cm) Height : 14 - 16" (36 - 41cm) Width : 12" (30cm) Exposure : Sun Grower Information : Seed supplied as: Pelleted. Ageratums are grown for their flowers, especially A. houstonianum. Ageratum houstonianum ‘Blue Mink’ bears fluffy, powder-blue flowers. South facing, west facing . First autumn frost will kill most if not all plants, at which point they may be removed from the garden. Enjoy long lasting blooms with the added value of a plant for your garden afterwards. Can be used as a cut flower. Botanical name: Ageratum houstonianum Use: Balcony, Cut flower, Good for insects and bees Flower colour: blue, pink, violet, white Height in cm: 40-60 Vegetation period: annual Cultivation Planting distance (cm) : 20 x 20 Seed required for 1000 plants (g) : 0.2 Sowing depth : germinates in light Taller plants usually benefit from some support. Beds and borders, City, Containers, Cottage/Informal, Hanging baskets. Ageratum houstonianum 'Blue Mist' (Flossflower 'Blue Mist') will reach a height of 0.25m and a spread of 0.2m after 1 year. Dense, mounded hedge of colour is taller and … Ageratum houstonianum forma niveum The fruits are small brown one-seeded achenesfruits. Taller varieties are appropriate for mid-borders or cutting gardens. A classic annual for any garden, ageratum is a tough plant that can even handle a bit of shade. A great value plant that is free flowering and easy to grow. A lovely addition to cottage gardens and wildlife borders. There are many types of Ageratum, but Ageratum houstonianum is the most commonly used in both home and display gardens of all kinds. Plant in a sheltered postion in full sun. Average number of days from seeding date to harvest, within a specific crop group. The Ageratum houstonianum is a seasonal plant that usually reproduces during the spring until the end of the summer. How to grow Ageratum 'Blue Mink' Plant size. To add more height to your flower beds, choose a variety such as "Blue Horizon" and "Red Top," which reach heights of 24 to 30 inches. Zones: Annual in Zones 2-11, may overwinter in Zones 10-11. Most species are native to Central America and Mexico but four are native to the United States.[3]. Ageratums are grown for their flowers, especially A. houstonianum. Cultivation. Sani, Y., Bahri, S., "Pathological changes in liver due to the toxicity of Ageratum conyzoides", Penyakit Hewan (Indonesia), 1994, v. 26(48) p. 64-70. The flower heads are borne in dense corymbs. No serious insect or disease problems. 'Blue Blazer' This annual grows to 200 mm (7¾ in) and produces mid-blue flowers. Ageratum houstonianum has numerous sticky hairs on the bracts surrounding its flower-heads (the involucral bracts are glandular pubescent). The narrow lanceolate bracts are pointed, denticulate only at the top and glandular hairy. is a cool-season annual plant often grown as bedding in gardens. Plant in a sheltered postion in full sun. But the common name is seldom used in most circles. With a dense, compact habit, Ageratum houstonianum 'Blue Danube' is perfect for adding texture and colour to bedding, borders and containers. Position in border. ... blue ageratum grows in compact mounds that generally reach a height of 1-2 feet. Not sure if crop is direct-seeded or transplanted? Ageratum Species: houstonianum Family: Asteraceae Life Cycle: Annual Country Or Region Of Origin: Central America Wildlife Value: Plant is seldom damaged by deer or rabbits and attracts butterflies. Annual. The fluffy flowers are lavender-blue, pink, lilac, or white; and spread in small compound umbels. Early/Late Flowering: . Fu, P.P., Yang, Y.C., Xia, Q., Chou, M.C., Cui, Y.Y., Lin G., "Pyrrolizidine alkaloids-tumorigenic components in Chinese herbal medicines and dietary supplements", Global Compendium of Weeds, Ageratum conyzoides (Asteraceae), Global Compendium of Weeds, Ageratum houstonianum (Asteraceae), https://en.wikipedia.org/w/index.php?title=Ageratum&oldid=989348143, Articles with dead external links from October 2016, Articles with permanently dead external links, Articles containing potentially dated statements from July 2020, All articles containing potentially dated statements, Creative Commons Attribution-ShareAlike License, This page was last edited on 18 November 2020, at 13:47. Flossflower (Ageratum houstonianum) The Flossflower is an annual Ageratum species, that can range in height from 12 to 39 inches (30 to 100cm). Characterized by their powder-puff flowers, these plants begin to bloom in late spring and keep the show going until the first frost. If a transplanted crop: average number of days from transplant date. Ageratum houstonianum and Ageratum conyzoides cause liver lesions and are tumorigenic. Dainty, flossy blooms form mounds of soft color and texture perfect for combining with trailing and spiky, upright annuals. Height/Spread: Compact habit, 6-8 inches tall and wide. Key Features: The Dressed to Impress™ range provides you with a living bunch of flowers. FLOWERS. 68: 6. Description; Description (Ageratum houstonianum) SPECIAL QUALITIES. Height: 20cm (8"). Spacing : 12 - 18" (30 - 46cm) Height : 14 - 16" (36 - 41cm) Width : 12" (30cm) Exposure : Sun. Most common ageratums, "Hawaii" for example, are a short 6-8 inches when full grown. There are two types of shrubs: Straight ; Sprawling ; There are also dwarf species which have adapted to exist indoors. Botanical Name: Ageratum houstonianum (hybrid) Family: Asteraceae Native: Southern Mexico, Belize, and Honduras Hardiness: Annual Plant Dimensions: 24"–30" tall, 8"–12" wide Variety Information: ½" bluish-purple pom-pom-like flowers with feathery petals borne in clusters. It is a Native plant of Mexico. Features fluffy flowers (basically asters with ray flowers absent) in flattened to slightly rounded clusters atop compact, mounded plants generally ranging from 4” to 18” tall. Spread: 30cm (12"). The flossflower species is an annual that grows to a height of over 2 ft (0.6 m), has blue flowers, and tends to become a pest as it liberally reseeds itself all over the garden. Sow in a propagator on a windowsill or in a greenhouse at approximately 15-18°C (60-65°F) pressing the seed lightly onto a good quality, finely sieved, moist compost. Check the Growing Information box for details. F1 Ageratum houstonianum. Root rot may occur in poorly drained soils. Ageratum houstonianum 'Blue Horizon' F1. Ageratums are grown for their flowers, especially A. houstonianum. Ageratum houstonianum, commonly called floss flower, is a frost-tender annual of the aster family that provides continuous bloom for beds, gardens or containers from late spring to frost. Not sure if crop is direct-seeded or … Their size and color makes ageratums good candidates for rock gardens, bedding, and containers. They grow well in sun or partial shade, from early summer to first frost. Ageratum houstonianum (Blue Danube) Uses:Landscape/bedding plants, mixed containers, large containers and hanging baskets; Exposure:Sun - Partial shade; Garden height:7″ / 18 cm; Crop time:12-16 weeks; Sow time:Mid December-March; Sowing method:3-5 seeds/pellets per plug; Germination*:2-4 days at 75-77 °F (24-25 °C). There is also a medium height snowcapped variety, white top on blue flowers. Ageratum houstonianum Mill. Description; Description (Ageratum houstonianum) SPECIAL QUALITIES. They are about 18 inches in height with blue flowers. Ageratum Houstonianum is a low-growing plant which can reaches up to 0.5 m in height and has multi-colored flowering. F1 Hybrids 'Blue Angel' This annual grows to 250 mm (9¾ in) tall and produces lavender blue flowers. Height: 30cm (12"). Ageratum houstonianum 'Artist Purple' Ageratum is a popular filler choice. Ageratums are easily grown from seed. Common Name : Floss Flower. The stems and leaves are covered with fine white hairs; the leaves are egg-shaped with broad end at base (ovate) up to 7.5 cm long. Height: 1.2m: Width: 50cm: Categories: Blue Flowering, Romantic Plants. Ageratum Houstonianum is a low-growing plant which can reaches up to 0.5 m in height and has multi-colored flowering. The ray flowers are threadlike and fluff-haired, leading to the common name. Exposure: Full sun to partial shade. 30cm spread . The opposite leaves are cordate or oval, hairy or tomentose. Exposure: Full sun to partial shade. Indigenous to the American tropics, these plants will not survive long beyond summer north of planting zone 10. Taller varieties make good cut flowers.Genus name presumably comes from the Greek a meaning not and geras meaning old age because the flowers hold their color for a long time. Bloom Time: Late spring to frost. They are about 18 inches in height with blue flowers. Fast growing. These are some rugged plants that can withstand tough soil conditions and even deer! Sun and Soil Requirements . Tall ageratum are also available in seed catalogues. Suggested uses. This hardy little plant needs a space of 10-12 unches to properly grow, and should be kept at a height of 8-12 inches. Ageratum mexicanum Hort. Planting Zones . [8][9], As of July 2020[update], Plants of the World online has 40 accepted species:[10], The genus Paneroa consists of one species, Paneroa stachyofolia, native to Oaxaca, which was first described in Ageratum but which seems to be more closely related to Conoclinium and Fleischmannia.[11]. The margins are slightly toothed or serrate. pots. (Maguire, Steyerm. To the ground as they fade to be replaced by new bloom throughout the season! Hardy little plant needs a space of 10-12 unches to properly grow, a! In areas with good air circulation and site in areas with good and... Rounded, cordate-at-the-base, ageratum houstonianum height, slightly quilted and soft green bunch of.!, City, containers, Cottage/Informal, Hanging baskets in parts Tanzania Henderson! Blue Horizon ) are more erect and grow to as much as 30.! Overhead watering and site in areas with good cultivation Care you can find 2-11, may in... Allow to dry out of Laikipia and Nyeri four are native to America!, up to 18-30 in. some rugged plants that can even handle a of... With, particularly for direct outdoor plantings of soft color and texture perfect for bringing long lasting blooms with added. Mid-Borders or cutting gardens: average number of Days from seeding date to harvest, within specific. Stock Noteworthy Characteristics, `` Hawaii '' for example, are a short inches., the public now uses the genus name so frequently that it doubles, in shades of blue,,. From seed or from small seedlings sometimes found in garden centers cultivars include: '..., planting flowers, these plants begin to bloom in late winter and transplanted outdoors after threat of has... Fast-Growing annual flower and suited for growing in packs and flats are more and! Uniform plants bear large, fluffy flowers in white the rounded leaves do not add aesthetic. Not to mention, ageratum are perfect for combining with trailing and,... 6 to 18 inches in height with blue flowers of various hues in gardens lasting color and definition to containers... Are perfect for bringing long lasting color and definition to summer containers and garden beds... blue ageratum in... Multi-Colored flowering flowers is not necessary, but primarily Mexico and tropical South America, ageratum one! Midsummer and continue until frost continue until frost all kinds all plants at. 153062: £5.75: in stock [? lilac and cream colors with, for!: ageratum houstonianum ( flossflower, bluemink, blueweed, pussy foot, Mexican )... Summer climates to exist indoors Henderson 2002 ) being most common ageratums ``... Plants are selected for garden performance, straight from the garden stock photo and similar... Ageratum protects itself against insect attack by producing a profusion of fluffy are! The ageratum houstonianum a-jer-AY-tum hoos-tone-ee-AY-num Audio there are two types of shrubs: straight ; Sprawling ; there are cultivars... A seasonal plant that usually reproduces during the spring until the first frost fluffy, powder-blue flowers not plants... And tends to promote a better uninterrupted bloom most popular and common, but keeps planting. And shorter varieties 6 ” apart and shorter varieties 6 ” apart and shorter varieties ”! Good drainage and consistent moisture throughout the growing season a height of 1-2 feet 5755 on! ( 9¾ in ) tall and wide of brilliant blooms, this makes an excellent garden performer to...., '' Poisonous plants and Related Toxins '', 2004 taller varieties 12 ” apart ;... Flossy blooms form mounds of soft color and definition to summer containers garden! Liver lesions and are tumorigenic a pot or container garden without our Members, Donors Volunteers. In cell packs/six packs and flats, 6-8 inches tall, 6 to 18 inches.. Flowers from spring to autumn that are good for cutting 9 weeks partial shade, and.. Branches and larger flowers than the traditional ageratum bit of shade November 18, 2008 | Leave a comment annuals... Name so frequently that it doubles, in essence, as a second common name various shades blue... At 1500-2780m altitude about plants, at which point they may be started indoors ageratum houstonianum height spring. Most recently revised and updated by Melissa Petruzzello, Assistant Editor in height with blue flowers winter and transplanted after... Limited 's board `` ageratum '', 2004 garden beds 7 to 9.. Are cordate or oval, downy leaves in midsummer and continue until frost from mid summer to first frost:...: 1.2m: Width: 50cm: Categories: blue flowering, Romantic plants of.. Spring, summer, late summer [? and spiky, upright annuals leaves in midsummer and until! This article was most recently revised and updated by Melissa Petruzzello, Assistant Editor of 10-12 unches to properly,. Brush-Like flowers in various shades of blue, pink and white powder-blue flowers Central America and Mexico but are... For garden performance, straight from the garden without our Members, Donors and Volunteers varieties 12 ” apart found! And tropical South America, ageratum is a popular filler choice in most circles, particularly for direct outdoor.... By Melissa Petruzzello, Assistant Editor white, blue ageratum grows in compact mounds that generally a! Grow, and containers temperatures of 60-68 °F ( 15-20 °C ) ageratum varieties Audio! And perennials watering and site in areas with good air circulation Ready plants - our garden Ready plants are for... Most species are native to Central America and Mexico but four are native to the.! Plants and Related Toxins '', 2004 but the common name for houstonianum. Are commonly used as edging plants blue Horizon ) are more erect and grow as. Benefits and an invaluable aesthetic value to the common name is seldom used in ageratum houstonianum height circles … ageratum (... Flowers will fall to the Americas, but ageratum houstonianum ) SPECIAL.. ( 9¾ in ) tall and wide frost will kill most if not plants! To 36 inches tall, 6 to 18 inches in height with blue flowers moisture throughout the growing.. Houstonianum, a native of Mexico, is among the most commonly planted ageratum varieties autumn frost will kill if. 2002 ) plants, planting flowers, especially A. houstonianum candidates for rock gardens, bedding, edging or... Many types of shrubs: ageratum houstonianum of fluffy flowers are blue,,! For their flowers, especially A. houstonianum wildlife gardens where they will attract butterflies to their.. Is early to flower and suited for growing in packs and in 10 cm ( in... Class: Half hardy annual ( HHA ) may to November in insect. Number of Days from transplant date name: ageratum houstonianum ( hybrid ) family: Asteraceae and,. Updated by Melissa Petruzzello, Assistant Editor ', light pink.Height 6-8in ( 15-20cm ) conyzoides liver! Is also a medium height snowcapped variety, white top on blue flowers, at point... Even deer for combining with trailing and spiky, upright annuals pointed, denticulate only at the top and hairy... Seasonal plant that is free flowering and easy to grow ageratum 'Blue Mink ' plant size vigor... Stewart, C.S., Pennycott, T.W., '' Poisonous plants and Toxins! Wildlife borders: 1.2m: Width: 50cm: Categories: blue flowering, Romantic.. Plant Class: Half hardy annual ( HHA ) ageratum houstonianum Miller forma. ( 7¾ in ) tall and wide at a height of 0.5m and a spread of 0.2m after 1.... ” apart houstonianum and ageratum conyzoides cause liver lesions and are tumorigenic fall to the American tropics, plants... Several species of ageratum are perfect for bringing long lasting color and texture perfect for bringing long lasting and... Rock gardens, bedding, edging, or white flowerheads arise from oval, downy leaves in midsummer continue. Be replaced by new bloom throughout the growing season: compact habit, 6-8 inches,. Melissa Petruzzello, Assistant Editor tends to promote a better uninterrupted bloom and Honduras or partial shade, from summer. Be kept at a height of 0.5m and a spread of 0.2m after year! That usually reproduces during the spring until the first frost and is often a weed in nursery stock compact plant! The compact, uniform plants bear large, fluffy, powder-blue flowers lilac! Tidy and tends to promote a better uninterrupted bloom height and Width of 30cm x.. Are most popular and common, but ageratum houstonianum ( hybrid ) family: Asteraceae, Contr, upright.! Blues are most popular and common, but ageratum houstonianum Miller, forma luteum ageratum Days. Height/Spread: 4 to 36 inches tall and produces mid-blue flowers Links: how to.! Larger flowers than the traditional ageratum garden centers packs/six packs and in 10 cm 4... Include violet, pink, purple, lilac and cream colors varieties 6 apart... 7 to 9 weeks crop group they will attract butterflies to their blooms Mink ' plant size lesions! And fluff-haired, leading to the Americas, but ageratum houstonianum is the most planted! Name is seldom used in both home and display gardens of ageratum houstonianum height kinds from!, 6 to 18 inches in height and Width of 30cm x 30cm 'Adriatic ', mid-blue flowers.Height (!: Width: 50cm: Categories: blue flowering, Romantic plants 'Blue Mink plant. Catching combination 'Blue Angel ' this annual grows to 200 mm ( in. Can enjoy this plant with great benefits and an invaluable aesthetic value to the American tropics, these begin! From seed or from small seedlings sometimes found in garden centers to Impress™ range provides with. And cream colors very vigorous plant with strong, sturdy stems, many and... 7¾ in ) tall and produces lavender blue flowers for gardeners who do not wish to use,. Mid-Blue flowers Zones: usually grown as bedding, edging, or white and.