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Stokesia laevis Mary Gregory

Stokesia laevis Mary Gregory
Stokes' Aster

4,9/5
9 reviews
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I collect them. I hope to see new cultivars emerge. The soil is loose and rather acidic. Sun. To prolong the flowering, it is necessary to remove the faded heads, just like for roses.

Geneviève B., 25/11/2018

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This plant carries a 12 months recovery warranty

More information

Value-for-money
A beautiful semi-evergreen perennial which blooms at the end of summer with large, tousled, white flowers with a creamy yellow heart, above tough, slender foliage. It resists almost everything and deserves to be grown more in sunny flowerbeds, rockeries or even large pots.
Flower size
10 cm
Height at maturity
40 cm
Spread at maturity
40 cm
Exposure
Sun
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time September to October
Recommended planting time March to May, September to November
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Flowering time August to October
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Description

Stokesia laevis 'Mary Gregory', also known as Chinese Aster or American Cornflower, is a beautiful semi-evergreen perennial that blooms at the end of summer. The large ruffled flowers resemble cornflowers and are white with a creamy yellow heart, rising above tough and slender foliage. It is underused in our gardens as it withstands almost anything and can be grown in sunny flower beds, rockeries or even large pots. Also excellent as cut flowers.

 

 

Stokesia laevis belongs to the asteraceae family, native to China and naturalised for a long time in the southeastern United States. It naturally grows in wet places, pine forests, savannas and ditches. The 'Mary Gregory' cultivar is a herbaceous plant producing a basal rosette of elliptical to lanceolate, 20 cm (8in) long leaves, slightly thorny at the base, with a lighter central vein. The plant reaches maturity in three years and then forms a spreading clump of 40 to 45 cm (16 to 18in) in all directions. The upright stems bear smaller, dark and vibrant green leaves, forming a complementary contrast with the very soft-looking flowers. The stems develop numerous decorative pink flower buds at their tips that will bloom into 10 cm (4in) in diameter, ruffled heads in August-September. The white ligules are arranged around a darker, creamy yellow feathery central disc. The nectar-rich flowers attract many butterflies.

 

The American cornflower is a beautiful ornamental plant with the purity and harmony of wildflowers. It is undemanding in terms of soil quality and happy in a sunny corner of the garden. It looks wonderful planted in groups with damask nigellas, in front of summer or autumn aster flower beds or with purple rudbeckias, shrubby salvias, daylilies and gauras. Beautiful pots can also be made with Stokesia laevis 'Mary Gregory'.

 

 

Stokesia laevis Mary Gregory in pictures

Stokesia laevis Mary Gregory (Foliage) Foliage

Flowering

Flower colour white
Flowering time August to October
Inflorescence Flower head
Flower size 10 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour green

Plant habit

Height at maturity 40 cm
Spread at maturity 40 cm
Growth rate slow

Botanical data

Genus

Stokesia

Species

laevis

Cultivar

Mary Gregory

Family

Asteraceae

Other common names

Stokes' Aster

Origin

Cultivar or hybrid

Product reference803111

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Planting and care

Stokesia laevis 'Mary Gregory' is easy to grow in ordinary, but well-drained soil in full sun and can tolerate partial shade. Moist soil in winter is the main cause of failure. It is essential to add good draining material like coarse sand, gravel, or shingle to a depth of 30-40 cm (12-16in) in clay soil. Even though it likes moist soil, it tolerates drought well. In colder regions, mulch the crown in winter. Remove faded flowers and dry stems to encourage new blooms. This plant is not very susceptible to diseases or pests.

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Planting period

Best planting time September to October
Recommended planting time March to May, September to November

Intended location

Suitable for Meadow
Type of use Border
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Amateur
Planting density 6 per m2
Exposure Sun
Soil pH Acidic, Neutral
Soil type Silty-loamy (rich and light), Stony (poor and well-drained)
Soil moisture Moist soil, well-drained

Care

Pruning instructions Cut the dried stems close to the ground and clean up the old foliage at the end of winter.
Pruning Pruning recommended once a year
Pruning time February to April
Disease resistance Very good
Overwinter Can be left in the ground
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