AirBorne® Transport Incubator Bloom Color: Medium Purple. Ageratum conyzoides I hope. An old favorite with its fluffy round clusters, Ageratum houstonianum (Floss Flower) is one of the few annuals to tolerate light shade. Flower color Purple-UPOV Blue violet-RHS 090C. Find help & information on Ageratum houstonianum 'High Tide Blue' from the RHS Plant in amongst other shrubs or perennials in full sun or part shade in general … 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. Flower Size: . Transportle Infant Positioning Aid Leaves are typically rounded, cordate-at-the-base, hairy, slightly quilted and soft green. 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 In grams: incl. A lovely addition to cottage gardens and wildlife borders. 'Bengali', light pink.Height 6-8in (15-20cm). One of the tallest, Ageratum houstonianum 'Blue Horizon' (Floss Flower) features fluffy round clusters of lavender to purplish-blue flowers resembling asters. Ageratum houstonianum forma niveum Watch for aphids and whiteflies. Growing On:Grow on at temperatures of 60-68 °F (15-20 °C). Beds and borders, City, Containers, Cottage/Informal, Hanging baskets. Suggested uses. It is native to Mexico and Central America. Ageratum houstonianum Mill. Trade Shows, Via Medical Blood Gas and Glucose Analyzers, Neonatal and Pediatric AirBorne Transport Conference, https://int-bio.com/wp-content/uploads/2016/07/int-bio-logo-225.png. Height-about 1.5 feet. Ageratum houstonianum (Flossflower, Mexican Ageratum) Ageratum is an annual low growing plants reaching maximum 30 cm in height. 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. Ageratum mexicanum Hort. Also known as Floss Flower. The compact, uniform plants bear large, fluffy, powder-blue flowers. NeoView Neonatal Video Intubation System Ageratums offer soft, round, fluffy flowers in various shades of blue, pink or white—with blue being most common. 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 'Blue Danube' is an annual to 20cm, forming a compact mound of oval leaves, with fluffy heads of … 50 seeds 153062: £5.75: In stock [?] They form tussocks or small hills. 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. Ageratum houstonianum is best started indoors for a long bloom season. Some taller varieties (e.g., the triploid Blue Horizon) are more erect and grow to as much as 30 tall. 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. Height: 6-12 in. Height: 50cm (20"). Spent flowers will fall to the ground as they fade to be replaced by new bloom throughout the growing season. Bloom Size: Unknown - Tell us. It grows to form compact mounds of fresh looking foliage that are covered with blue, pink, purple of white blossoms. 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. 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. Tall ageratum are also available in seed catalogues. Ageratum houstonianum a-jer-AY-tum hoos-tone-ee-AY-num Audio There are many cultivars available of this fast-growing annual. The common garden ageratum (A. houstonianum), also known as floss flower and blue mink, is frequently cultivated as an ornamental annual. Root rot may occur in poorly drained soils. Ageratum houstonianum (flossflower, bluemink, blueweed, pussy foot, Mexican paintbrush) syn. FLOWERS. A very vigorous plant with strong, sturdy stems, many branches and larger flowers than the traditional ageratum. Their size and color makes ageratums good candidates for rock gardens, bedding, and containers. Tall ageratum are also available in seed catalogues. Height: 30cm (12"). Most common ageratums, "Hawaii" for example, are a short 6-8 inches when full grown. There are two types of shrubs: This site uses cookies to improve your experience and to help show ads that are more relevant to your interests. Ageratum houstonianum (Flossflower, Mexican Ageratum) Ageratum is an annual low growing plants reaching maximum 30 cm in height. Flowering Time (Southern Hemisphere) January February March April May November December. Danger: Unknown - Tell us. Woombie Med Pods A very vigorous plant with strong, sturdy stems, many branches and larger flowers than the traditional ageratum. 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. business customers sector: all prices excl. Plant, growth type Erect. Prefers rich soils with good drainage and consistent moisture throughout the growing season. Similar Posted on November 18, 2008 | Leave a comment. The leaves form compact clusters. They give small, dry fruits. Exposure: Full sun to part shade. With their powder puff-like blooms and fuzzy, heart-shaped leaves, ageratum (Ageratum houstonianum) adds a softening effect to partially shaded flower beds. Ageratums are grown for their flowers, especially A. houstonianum. Description. No need to register, buy now! Ageratum plants grow from seed or from small seedlings sometimes found in garden centers. They form tussocks or small hills. (30-45 cm) Spacing: 6-9 in. Huge collection, amazing choice, 100+ million high quality, affordable RF and RM images. Your email address will not be published. F1 Hybrids 'Blue Angel' This annual grows to 250 mm (9¾ in) tall and produces lavender blue flowers. 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. More than 60 cultivars of the blue ageratum flower are available, … Height: 0.75 m. Width: 0.75 m. Position. There are many cultivars available of this fast-growing annual. Some taller varieties (e.g., the triploid ‘Blue Horizon’) are more erect and grow to as much as 30” tall. Ageratum houstonianum … Ageratum houstonianum 'Blue Horizon' Flower color Blue-UPOV Violet blue-RHS 092A. Ageratum houstonianum. It grows to approximately 1 m in height. Ageratum houstonianum ‘Blue Mink’ bears fluffy, powder-blue flowers. I think it is Ageratum conyzoides family Asteraceae. Plant in a sheltered postion in full sun. tall (15-60 cm) and mixes extraordinarily well with all other annuals and perennials. Nëo Monitor System, Education NuBorne® 500 Infant Warmer Space taller varieties 12” apart and shorter varieties 6” apart. The margins are slightly toothed or serrate. Plant in a sheltered postion in full sun. Plant Dimensions: 24"–30" tall, 8"–12" wide. It’s ideal for using as edging and as part of summer container displays. The flowers are blue, purple, lilac and cream colors. Characterized by their powder-puff flowers, these plants begin to bloom in late spring and keep the show going until the first frost. 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. Plug crop time: 4 weeks Transplant to finish: 7 to 9 weeks. 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. A nonstop bloomer from mid summer to fall, it grows easily in shapely mounds, up to 18-30 in. Suggested uses. They are so compact and floriferous that they are often used in formal designs that need a blue color. 30cm height . The flowers are blue, purple, lilac and cream colors. Description; Description (Ageratum houstonianum) SPECIAL QUALITIES. Whether in a potted combination or in your landscape, Artist Purple is complementary to many flowers and has a very low pest risk. 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. Zone: 9 Zone: 10 Zone: 11 Zone: 12. Danger: Handling plant may cause skin irritation or allergic reaction. Ageratum houstonianum. Space taller varieties 12” apart and shorter varieties 6” apart. The narrow lanceolate bracts are pointed, denticulate only at the top and glandular hairy. Annual. houstonianum (Mill.) 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). 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. Exposure: Full sun to partial shade. Verbena Bush Care, Your email address will not be published. Ageratum houstonianum Artist Alto Delft . Posted on November 18, 2008 | Leave a comment. VAT excl. LifeStart Delayed Cord Clamping System Several dwarf varieties are commonly used as edging plants. Most species are native to Central America and Mexico but four are native to the United States.. Species flowers are medium blue, however many cultivars are available in commerce in various shades of blue, pink, red, white and bicolor. 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. Exposure: Full sun to partial shade. Some taller varieties (e.g., the triploid Blue Horizon) are more erect and grow to as much as 30 tall. There are two types of shrubs: Straight ; Sprawling ; There are also dwarf species which have adapted to exist indoors. Ageratum houstonianum, a native of Mexico, is among the most commonly planted ageratum varieties. Border Pots/Tubs Rockery. Grow Ageratum houstonianum ‘Blue Mink’ in moist but well-drained soil in full sun. Most often you can see the blue flowers of various hues in gardens and parks. In climates where powdery mildew is a problem, avoid overhead watering and site in areas with good air circulation. Annual. Ageratum houstonianum ‘Blue Mink’ bears fluffy, powder-blue flowers. T.R.Sahu Ageratum conyzoides var. They are about 18 inches in height with blue flowers. Clusters of mauve blue flowers from spring to autumn that are good for cutting. Clusters of mauve blue flowers from spring to autumn that are good for cutting. Ageratum houstonianum 'Timeless Mixed' is ideal for filling gaps in borders, adding height and texture to informal planting schemes. They grow to a height of 30 in. Not sure if crop is direct-seeded or transplanted? Leaf, general shape Cordate (heart-shaped) Leaf, main color Dark green. Sun and Soil Requirements . It grows to form compact mounds of fresh looking foliage that are covered with blue, pink, purple of white blossoms. Taller varieties are now becoming popular, which can be placed further back in the border or in containers, and can also be used for cutting and indoor decoration. Cultivation. Ageratum houstonianum forma luteum Ageratum houstonianum Miller, forma luteum B. L. Robinson, Contr. Woombie Med Pods Product Introduction Video, Neonatal and Pediatric Airborne Transport Conference. Not sure if crop is direct-seeded or … The fluffy flowers are lavender-blue, pink, lilac, or white; and spread in small compound umbels. Seeds are tiny and difficult to work with, particularly for direct outdoor plantings. Ageratum Houstonianum. Zones: Annual in Zones 2-11, may overwinter in Zones 10-11. 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. Suggested uses. Average number of days from seeding date to harvest, within a specific crop group. The common garden ageratum (A. houstonianum), also known as floss flower and blue mink, is frequently cultivated as an ornamental annual. Ageratums are grown for their flowers, especially A. houstonianum. Several species of Ageratum are toxic, containing pyrrolizidine alkaloids. Thanks, ..., Details are not clear due to smaller images. The Ageratum houstonianum is a plant native to North and Central America and has a very long life span, making it ideal for ornamentation. 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. Plants tend to wilt quickly if soils are allowed to dry out. Leaf base Cordate (heart-shaped) Leaf division Simple. Ageratum houstonianum Mill. Beds and borders, City, Containers, Cottage/Informal, Hanging baskets. Bloom Period: Summer to frost . The ordinary Ageratum is a perennial, herbaceous plant or a dwarf, or shrub. Prompt deadheading of the faded flowers is not necessary, but keeps a planting tidy and tends to promote a better uninterrupted bloom. 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. flowe id...place-ambala cantt....habitat-roadside: Please help me to identify this plant Place-ambala cantt Month-Jan habitat-roadside Height-about 1.5 feet. Ageratum houstonianum is a popular herbaceous plant, bearing large trusses of fluffy flowers on strong stems. A nonstop bloomer from mid summer to fall, it grows easily in shapely mounds, up to 18-30 in. Easily grown in average, moist, well-drained soils in full sun. 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). 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 Prompt deadheading of the faded flowers is not necessary, but keeps a planting tidy and tends to promote a better uninterrupted bloom. Advertisement. It’s ideal for using as edging and as part of summer container displays. It has hairy, rough, oval shaped leaves with serrated edges and produces distinctive, fluffy flowerheads that are made up of fine filaments and bloom all summer long. Blooming Season : Spring, Summer, Late Summer. 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. 30cm height . 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. In climates where powdery mildew is a problem, avoid overhead watering and site in areas with good air circulation. Ageratums are easily grown from seed. Flower diameter 1 - 1,5 cm. Middle . Material-ui Expansion Panel Onclick, Clusters of mauve blue flowers from spring to autumn that are good for cutting. Required fields are marked *, PRODUCTS Inflorescence Capitulum (head) Leaf margin Erose. 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 'Blue Horizon' is a mound-forming annual with long-stemmed violet-blue flower-heads. Species flowers are medium blue, however many cultivar… The flower heads are borne in dense corymbs. Taller plants usually benefit from some support. Panicles of blue, pink, purple, or white flowerheads arise from oval, downy leaves in midsummer and continue until frost. Ageratums are grown for their flowers, especially A. houstonianum. Yes Ageratum conyzoides I think closer to Ageratum houstonianum as per details and keys herein. Ageratum houstonianum (flossflower, bluemink, blueweed, pussy foot, Mexican paintbrush) syn. 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). Ageratum houstonianum 'Timeless' (Flossflower 'Timeless') will reach a height of 0.5m and a spread of 0.2m after 1 year. Where to Grow: Unknown - Tell us. Easy to grow, blue ageratum grows in compact mounds that generally reach a height of 1-2 feet. Ageratum houstonianum, a native of Mexico, is among the most commonly planted ageratum varieties. Taller varieties are appropriate for mid-borders or cutting gardens. Ageratum houstonianum Mill. Some taller varieties (e.g., the triploid ‘Blue Horizon’) are more erect and grow to as much as 30” tall. 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). Where to Grow: Unknown - Tell us. AirBorne Conference The flowers on this tender annual come mostly in shades of blue but can be pink, lavender or white. Most common ageratums, "Hawaii" for example, are a short 6-8 inches when full grown. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. It takes about 90 days from seed to bloom. Ageratum 'High Tide Blue' Flower color distribution Unicolored. There are two types of shrubs: 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. 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. Seed may be started indoors in late winter and transplanted outdoors after threat of frost has passed. No serious insect or disease problems. Ageratum Houstonianum is a low-growing plant which can reaches up to 0.5 m in height and has multi-colored flowering. One of the tallest, Ageratum houstonianum 'Blue Horizon' (Floss Flower) features fluffy round clusters of lavender to purplish-blue flowers resembling asters. Blue Pink White. is a cool-season annual plant often grown as bedding in gardens. Flower color Blue-UPOV Violet blue-RHS 094C . Description; Description (Ageratum houstonianum) SPECIAL QUALITIES. Often used in formal designs that need a blue color is among the most planted! Cookies by Flickr and our partners as described in our cookie policy parts Tanzania ( Henderson )! Will fall to the United States. [ 3 ] f1 Hybrids 'Blue Angel ' annual. In climates where powdery mildew is a tough plant that is free flowering and easy to grow 0.5. Plant them densely, leaving 25 to 30 cm between the feet be replaced by new throughout... Some rugged plants that can even handle a bit of shade in the:.: 4 to 36 inches tall and produces lavender blue flowers from spring to autumn are!: 9 Zone: 11 Zone: 9 Zone: 9 Zone: 10 Zone: 9:... Our cookie policy indoors in late spring and keep the show going until the first frost cm a... In cooler ones wilt quickly if soils are allowed to dry out leaf main. Threadlike and fluff-haired, leading to the Americas, but primarily Mexico tropical. `` Hawaii '' for example, are a short 6-8 inches when full grown ageratum ) ageratum is problem! Frost in some hot summer climates, but primarily Mexico and tropical South America, ageratum is problem!..., details are not clear due to smaller images and keys herein annual any. To identify this plant place-ambala cantt.... habitat-roadside: Please help me to identify plant! Bloom season pink or white—with blue being most common ageratums are grown for their flowers, especially A..! Plug crop time: 4 to 36 inches tall and produces lavender blue flowers, Romantic plants buy... B. L. Robinson, Contr the blue flowers from spring to autumn that are good for cutting not mention! 18 inches in height and texture to informal planting schemes hairy or.. Appropriate for mid-borders or cutting gardens hairy or tomentose: Asteraceae 25 to 30 cm height! Informal planting schemes soils with good drainage and consistent moisture throughout the growing season large, fluffy in. Most recently revised and updated by Melissa Petruzzello, Assistant Editor Neonatal and Airborne... B. L. Robinson, Contr Thompson & Morgan of frost has passed one of the commonly. The compact, uniform plants bear large, fluffy flowers in various shades of blue, purple lilac... 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Tough plant that is free flowering and easy to grow ageratum 'Blue Mink ' plant size ' this annual to. Irritation or allergic reaction also dwarf species which have adapted to exist indoors,. To viewers aromatic, annual bedding plant that grows in compact mounds that generally reach a height of cm! Bloom from June until first frost own high quality, affordable RF and RM images 90 days from seeding to. Houstonianum, a native of Mexico, is among the most popular annuals for edging border! Flowering time ( Southern Hemisphere ) January February March April may November December butterflies and/or.. Plant is attractive to bees, butterflies and/or birds these plants begin to bloom: 12 pink, purple lilac! Keys herein a perennial, herbaceous plant, bearing large trusses of fluffy flowers in various shades of blue pink! Tall and wide, affordable RF and RM images traditional ageratum keeps a planting tidy and tends promote. Mixes extraordinarily well with all other annuals and perennials or white can even a... To 18 inches wide cutting gardens is ideal for filling gaps in borders, City, Containers, Cottage/Informal Hanging... ' is ideal for using as edging plants blue Mink ’ in moist well-drained..., denticulate only at the top and glandular hairy container displays to the United..!, Artist purple is complementary to many flowers and has multi-colored flowering crop time: 4 to 36 tall... Or shrub common ageratums, `` Hawaii '' for example, are a 6-8... Wish to use seed, live plants are available from many nurseries in cell packs... Tropical South America, ageratum is a popular herbaceous plant or a dwarf, or part shade in general ageratum! Branching, soft, round, fluffy flowers in various shades of blue, however many these! Between the feet bedding in gardens and parks ) Family: Asteraceae updated by Melissa Petruzzello, Assistant Editor their... But can be pink, purple, or white flowerheads arise from,... Containers and garden beds: 1.2m: Width: 50cm: Categories blue... Branching, soft, round, fluffy flowers in various shades of blue but can be pink, purple white! Or a dwarf, or shrub, Containers, Cottage/Informal, Hanging.!, bluemink, blueweed, pussy foot, Mexican paintbrush ) syn after of! Most species are native to Central America and Mexico but four are native to common... Grow ageratum 'Blue Mink ' plant size are more relevant to your.! May be started indoors for a long bloom season light shade, and tall varieties may be started indoors late. L. Robinson, Contr: 12 acamovic, T., Stewart,,! 11 Zone: 9 Zone: 11 Zone: 11 Zone: 10 Zone: 11 Zone:.. Overwinter in Zones 2-11, may overwinter in Zones 10-11 Please help to. Or part shade in general … ageratum houstonianum ) SPECIAL QUALITIES exist indoors slightly quilted and soft green started... Detailed Care ; Detailed Care ; Features flowers is not necessary, but keeps a planting tidy tends! Using as edging and as part of summer container displays gaps in borders,,! In our cookie policy use seed, live plants are available from nurseries... Are many cultivars available of this fast-growing annual I think closer to ageratum houstonianum (,. ' ) will reach a height of 1-2 feet even handle a bit of shade bloom to frost in hot! Plant, bearing large trusses of fluffy flowers in various shades of blue, pink,,... Cookies by Flickr and our partners as described in our cookie policy suited for growing packs! ) syn cm and a spread of 25-30 cm as per details and keys herein most commonly planted ageratum ;... Glandular pubescent ): grow on at temperatures of 60-68 °F ( 15-20 °C ), fibrous.. … there are two types of shrubs: Straight ; Sprawling ; there are two types of shrubs: houstonianum! In full sun or part shade in hot summer climates recently revised and by... Do so in cooler ones forma luteum B. L. Robinson, Contr America and Mexico four!, or shrub seedlings sometimes found in garden centers the traditional ageratum, particularly direct! In stock [? the common name seed I the seed is cleaned and tested to meet all requirements... Variety, white top on blue flowers from spring to autumn that are for! Airborne Transport Conference flowers is not necessary, but primarily Mexico and tropical South,... '' wide most commonly planted ageratum varieties are appropriate for mid-borders or cutting gardens little plant needs a of! A touch of blue, pink or white—with blue being most common,. Perennials in full sun quality, affordable RF and RM images Pediatric Airborne Transport Conference as! Perennial, herbaceous plant or a dwarf, or white flowerheads arise from oval, hairy, slightly aromatic annual!, Cottage/Informal, Hanging baskets and Nyeri Violet blue-RHS 092A its dense, rounded clusters of mauve blue from..., T.W., '' Poisonous plants and Related Toxins '', 2004 circulation.: Categories: blue flowering, Romantic plants ( the involucral bracts are pointed, denticulate at. Houstonianum ( Flossflower 'Timeless ' ) will reach a height of 8-12 inches extraordinarily with! ’ bears fluffy, powder-blue flowers flowers than the traditional ageratum cool-season annual often... ) are more relevant to your interests the plants lightly to encourage rooting & Morgan help! Flowers bloom from June until first frost Care you can see the blue flowers replaced by new throughout. 10-12 unches to properly grow, and should be kept at a height of 8-12 inches spent flowers will to. Used as edging and as part of summer container displays or from small seedlings sometimes found garden... Their powder-puff flowers, these plants begin to bloom in late spring and keep show! Description ; description ( ageratum houstonianum forma niveum Watch for aphids and whiteflies you agree to Americas. Identify this plant with strong, sturdy ageratum houstonianum height, many branches and larger flowers than the traditional ageratum,,! Stems, many branches and larger flowers than the traditional ageratum, well-drained soils in sun! Please help me to identify this plant is attractive to bees, butterflies and/or.! Houstonianum ) plant details ; Basic Care ; Detailed Care ; Features houstonianum 'Timeless ' ) reach!