Growing On:Grow on at temperatures of 60-68 °F (15-20 °C). Ageratum (/əˈdʒɛrətəm/) (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. ... blue ageratum grows in compact mounds that generally reach a height of 1-2 feet. Gray Herb. They are about 18 inches in height with blue flowers. F1 Hybrids 'Blue Angel' This annual grows to 250 mm (9¾ in) tall and produces lavender blue flowers. POSITION & USES . 'Blue Blazer' This annual grows to 200 mm (7¾ in) and produces mid-blue flowers. Root rot may occur in poorly drained soils. An old favorite with its fluffy round clusters, Ageratum houstonianum (Floss Flower) is one of the few annuals to tolerate light shade. Taller plants usually benefit from some support. Heat tolerant and attractive to butterflies, Ageratum are perfect for bringing long lasting color and definition to summer containers and garden beds. Description; Description (Ageratum houstonianum) SPECIAL QUALITIES. Ageratum plants grow from seed or from small seedlings sometimes found in garden centers. Description; Description (Ageratum houstonianum) SPECIAL QUALITIES. Plug crop time: 4 weeks Transplant to finish: 7 to 9 weeks. 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 flowers are blue, purple, lilac and cream colors. Early/Late Flowering: . A classic annual for any garden, ageratum is a tough plant that can even handle a bit of shade. They give small, dry fruits. Noa, M., Sanchez, L.M., Durand, R., "Ageratum houstonianum toxicosis in Zebu cattle", Veterinary and human toxicology, 2004, vol.46, no4, pp.193-195. A great value plant that is free flowering and easy to grow. Plant in a sheltered postion in full sun. Tall ageratum are also available in seed catalogues. Beds and borders, City, Containers, Cottage/Informal, Hanging baskets. Ageratum mexicanum Hort. 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. It is native to Mexico and Central America. Easily grown in average, moist, well-drained soils in full sun. Similar Prompt deadheading of the faded flowers is not necessary, but keeps a planting tidy and tends to promote a better uninterrupted bloom. Zones: Usually grown as an annual; perennial in Zones 10-11. 30cm height . 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. Characterized by their powder-puff flowers, these plants begin to bloom in late spring and keep the show going until the first frost. Their size and color makes ageratums good candidates for rock gardens, bedding, and containers. Ageratum houstonianum is invasive in parts Tanzania (Henderson 2002). They grow well in sun or partial shade, from early summer to first frost. Seed may also be sown directly in the garden after last frost date, however flowering season will be shorter (late summer to frost). 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. They grow to a height of 30 in. 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 (flossflower, bluemink, blueweed, pussy foot, Mexican paintbrush) syn. Flower Size: . The narrow lanceolate bracts are pointed, denticulate only at the top and glandular hairy. They are about 18 inches in height with blue flowers. 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. These are some rugged plants that can withstand tough soil conditions and even deer! Native: Southern Mexico, Belize, and Honduras. Plants tend to wilt quickly if soils are allowed to dry out. Suggested uses. Tall ageratum are also available in seed catalogues. There is also a medium height snowcapped variety, white top on blue flowers. Plant it with Bupleurum for a particularly eye catching combination. Prefers rich soils with good drainage and consistent moisture throughout the growing season. Ageratum houstonianum. They have toothed ovate leaves arranged oppositely along the stem. 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 Useful Links: How to sow flower seeds Reasons to buy your seeds from Thompson & Morgan. Not sure if crop is direct-seeded or … Most common ageratums, "Hawaii" for example, are a short 6-8 inches when full grown. Dainty, flossy blooms form mounds of soft color and texture perfect for combining with trailing and spiky, upright annuals. The fruits are small brown one-seeded achenesfruits. Ageratum Houstonianum is a low-growing plant which can reaches up to 0.5 m in height and has multi-colored flowering. 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 … 1923. Ageratum conyzoides is an erect, branching, soft, slightly aromatic, annual herb with shallow, fibrous roots. How to grow Ageratum 'Blue Mink' Plant size. With a vigorous, open habit, Ageratum houstonianum 'Blue Mink' is perfect for adding texture and colour to bedding, borders and containers. This article was most recently revised and updated by Melissa Petruzzello, Assistant Editor. A. houstonianum is naturalised in Kenya at 1500-2780m altitude. It grows to approximately 1 m in height. 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. 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. Noteworthy Characteristics. For gardeners who do not wish to use seed, live plants are available from many nurseries in cell packs/six packs and flats. 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. There are many cultivars available of this fast-growing annual. Ageratum houstonianum. 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. ageratum houstonianum - Buy this stock photo and explore similar images at Adobe Stock 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. 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. 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. The blues are most popular and common, but colors also include violet, pink and white. The compact, uniform plants bear large, fluffy, powder-blue flowers. The strong vigor in the garden makes Aloha an excellent garden performer. It is a Native plant of Mexico. pots. Most common ageratums, "Hawaii" for example, are a short 6-8 inches when full grown. Not sure if crop is direct-seeded or transplanted? First autumn frost will kill most if not all plants, at which point they may be removed from the garden. A nonstop bloomer from mid summer to fall, it grows easily in shapely mounds, up to 18-30 in. Position in border. Ageratum houstonianum. Good for beds, borders, pathways and rockeries. 50 seeds 153062: £5.75: In stock [?] Height 50cm (20"). Bloom Period: Summer to frost . The common garden ageratum (A. houstonianum), also known as floss flower and blue mink, is frequently cultivated as an ornamental annual. The flowering period is from May to November in the northern hemisphere. Watch for aphids and whiteflies. Tolerates light shade, and prefers some light afternoon shade in hot summer climates. A classic annual for any garden, ageratum is a tough plant that can even handle a bit of shade. One of the tallest, Ageratum houstonianum 'Blue Horizon' (Floss Flower) features fluffy round clusters of lavender to purplish-blue flowers resembling asters. Exposure: Full sun to partial shade. The opposite leaves are cordate or oval, hairy or tomentose. Posted on November 18, 2008 | Leave a comment. tall (15-60 cm) and mixes extraordinarily well with all other annuals and perennials. How to grow Ageratum 'Blue Mink' Plant size. If a transplanted crop: average number of days from transplant date. , As of July 2020[update], Plants of the World online has 40 accepted species:, 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.. Habit: Dwarf, Ground Cover. Ageratums are grown for their flowers, especially A. houstonianum. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Ageratum, Floss Flower (Ageratum houstonianum) Plant Details; Basic Care; Detailed Care; Features. A very vigorous plant with strong, sturdy stems, many branches and larger flowers than the traditional ageratum. Learn More in these related Britannica articles: Asteraceae. 'Blue Blazer' This annual grows to 200 mm (7¾ in) and produces mid-blue flowers. Ageratum houstonianum forma niveum Species flowers are medium blue, however many cultivars are available in commerce in various shades of blue, pink, red, white and bicolor. 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.. 30cm height . If a transplanted crop: average number of days from transplant date. Planting Zones . Ageratum houstonianum Days To Maturity About Quick Fact Days To Maturity. Ageratum houstonianum ‘Blue Mink’ bears fluffy, powder-blue flowers. Easy to grow, blue ageratum grows in compact mounds that generally reach a height of 1-2 feet. Ageratum houstonianum 'Timeless' (Flossflower 'Timeless') will reach a height of 0.5m and a spread of 0.2m after 1 year. See more ideas about Plants, Planting flowers, Prune. 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. Spent flowers will fall to the ground as they fade to be replaced by new bloom throughout the growing season. There are many types of Ageratum, but Ageratum houstonianum is the most commonly used in both home and display gardens of all kinds. F1 Ageratum houstonianum. Plant in amongst other shrubs or perennials in full sun or part shade in general … Check the Growing Information box for details. 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). Leaves are typically rounded, cordate-at-the-base, hairy, slightly quilted and soft green. Botanical Name: Ageratum houstonianum (hybrid) Family: Asteraceae. Exposure: Full sun to partial shade. Color: White flowers, green foliage ‘Aloha’ is one of … 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. The rounded leaves do not add any aesthetic value to the plant. Suggested uses. There is also a medium height snowcapped variety, white top on blue flowers. Easy … Fast growing. Ageratum houstonianum 'Blue Mist' (Flossflower 'Blue Mist') will reach a height of 0.25m and a spread of 0.2m after 1 year. They are quite easy to grow, producing a profusion of fluffy flowers all season long. Some taller varieties (e.g., the triploid Blue Horizon) are more erect and grow to as much as 30 tall. Key Features: The Dressed to Impress™ range provides you with a living bunch of flowers. A. houstonianum is the most popular variety, in shades of white, blue and mauve. Average number of days from seeding date to harvest, within a specific crop group. There are two types of shrubs: They are best used as bedding, edging, or container plants. Whether in a potted combination or in your landscape, Artist Purple is complementary to many flowers and has a very low pest risk. Growing Information. They are best used as bedding, edging, or container plants. Enjoy long lasting blooms with the added value of a plant for your garden afterwards. Ageratums are grown for their flowers, especially A. houstonianum. Ageratum houstonianum Ariella Blue. 'Bengali', light pink.Height 6-8in (15-20cm). Ageratum houstonianum 'Blue Horizon' F1. They form tussocks or small hills. 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! Instead, the public now uses the genus name so frequently that it doubles, in essence, as a second common name. The leaves form compact clusters. 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. Also effective in rock gardens. 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 plant grows to 0.3–1 m high, with ovate to triangular leaves 2–7 … There is also a medium height snowcapped variety, white top on blue flowers. Most often you can see the blue flowers of various hues in gardens and parks. 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.
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