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Ageratum houstonianium Cushion White - Bluemink

Ageratum houstonianium Cushion White
Flossflower, Blue Mink, Mexican Paintbrush, Pussy Foot, Bluemink

5,0/5
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No maintenance, full sun, brightens up my terrace all summer.

Monique, 26/03/2022

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This plant carries a 6 months recovery warranty

More information

This annual Ageratum forms a well compact cushion that is covered with almost perfect white pompoms for several months, from spring to late summer. The plant also has good tolerance to both sun and rain. Ideal in a pot to liven up terraces and balconies, this variety also performs very well in borders and flower beds.
Flower size
1 cm
Height at maturity
25 cm
Spread at maturity
25 cm
Exposure
Sun
Hardiness
Hardy down to -12°C
Soil moisture
Moist soil
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Best planting time March to April
Recommended planting time March to May
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Flowering time April to September
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Description

The Ageratum Cushion White is an improved variety of Mexican ageratum that forms a beautiful cushion of white flowers, both in pots and in the ground. The plant grows into a small tuft that remains compact throughout the season. It is truly covered in white pompoms from spring until late summer. This variety also offers good tolerance to both sun and rain. Ideal for animating terraces and balconies for long weeks, this annual plant nicely decorates borders and flower beds.

 

The dwarf Ageratum Cushion White belongs to the aster family. This variety is derived from Ageratum houstonianum, a perennial plant cultivated as an annual, native to Central America and the Caribbean. This Cushion White selection forms rounded, bushy cushions that reach a height of 25-30 cm (10-12in) and a width of 25 cm (10in). Highly branched and covered in hairs, its numerous stems rise and spread gracefully. The leaves, also hairy, are toothed and ovate in shape. Sometimes they are heart-shaped at the base, and their colour is a fairly dark bluish green. This foliage is theoretically evergreen in winter if it does not freeze. From April until early autumn, the flowers bloom continuously if faded ones are removed regularly. The inflorescences are heads assembled in bouquets. They are born cream-coloured and then open to pure white, resembling pretty feathery pompoms. The flower bouquets are so numerous that they almost entirely conceal the foliage. The plant dies with the first frost.

 

Mexican ageratums are often planted in urban landscaping. Their floribundance and vibrant colours allow for interesting associations with many other low-growing plants in flowerbeds: marigolds, lantanas, celosias, lobelias, marigolds, or red salvias. It is easy to create a pastel carpet by combining them with begonias and pink impatiens, or with fragrant alyssums in the foreground of the flowerbeds. The Cushion White selection allows for beautiful flowering pots with fuchsias, inside, on the terrace or balcony.

Mexican Ageratum is a plant that promotes insect pollination work. Bees, butterflies, and others.

Note: Please be aware that our plug plants are professional products reserved for experienced gardeners: upon receipt, repot and store them under cover (veranda, greenhouse, cold frame) at a temperature above 14°C (57.2°F) for a few weeks before being placed outdoors once the risk of frost has been definitively avoided.

 

Flowering

Flower colour white
Flowering time April to September
Inflorescence Corymb
Flower size 1 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Annual
Foliage colour dark green

Plant habit

Height at maturity 25 cm
Spread at maturity 25 cm
Growth rate very fast

Botanical data

Genus

Ageratum

Species

houstonianium

Cultivar

Cushion White

Family

Asteraceae

Other common names

Flossflower, Blue Mink, Mexican Paintbrush, Pussy Foot, Bluemink

Origin

Cultivar or hybrid

Product reference167831

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Planting and care

Plant the Ageratum in well-drained soil, rich in compost, in a sunny location. It is sensitive to drought, so the base of the plant should never be dry. Remove faded flowers to promote the production of new flowers. The plant does not like limestone. Apply a fertilizer low in nitrogen, such as one specifically for geraniums.

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Planting period

Best planting time March to April
Recommended planting time March to May

Intended location

Suitable for Meadow
Type of use Edge of border, Container
Hardiness Hardy down to -12°C (USDA zone 8a) Show map
Ease of cultivation Beginner
Exposure Sun
Soil pH Neutral, Any
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, good horticultural soil

Care

Pruning instructions Prune the flowers regularly.
Pruning Pruning recommended once a year
Pruning time April to August
Disease resistance Good
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