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Stokesia laevis Blue Star

Stokesia laevis Blue Star
Stokes' Aster

5,0/5
13 reviews
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Out of the three young plants received, one was feeble. I've tried to save it, but I despair of succeeding. However, the other two seem to be doing quite well despite the current lack of sunlight and warmth, and the excessively high humidity.

Joël, 16/05/2023

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This plant carries a 12 months recovery warranty

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Value-for-money
A variety of stokesia with large sky-blue flowers with white centres! It is a perennial with a rosette of dark green, evergreen, narrowly lanceolate leaves that maintain a neat appearance along the garden border. From July to October, numerous upright stems bearing wide heads with heavily fringed petals emerge from its clump. It grows well in sunny and well-drained gardens, even tolerating drought. It is a very hardy and easy to grow perennial, suitable for novice gardeners and wild gardens.
Flower size
8 cm
Height at maturity
60 cm
Spread at maturity
45 cm
Exposure
Sun
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time March to May, September to November
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Flowering time July to October
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Description

Stokesia laevis 'Blue Star' is a variety with large sky-blue flowers with white centres! It is a perennial that forms a rosette of dark green, evergreen, narrowly lanceolate leaves and maintains a neat appearance in the border of the garden. From July to October, numerous erect stems emerge from its tuft, bearing wide heads with strongly laciniate ligules. It performs well in sunny and well-drained gardens, even tolerating drought. It is a very hardy and easy-to-grow perennial, suitable for beginner gardeners and wild gardens.

 

Stokesia laevis belongs to the asteraceae family. it is native to China and has been naturalised in the southeastern United States for a long time. In the wild, it grows in damp places, pine forests, savannas, and ditches and can withstand temperatures down to -25°C (-13°F). The 'Blue Star' cultivar is an herbaceous perennial that forms a basal rosette of elliptical to lanceolate, 20 cm (8in) long leaves, slightly spiny at the base, with a lighter central vein. The plant grows quite slowly, reaching maturity in three years, forming a spreading clump 60 cm (24in) tall and 45 cm (18in) wide. The erect stems bear smaller, dark and vibrant green leaves, creating a complementary contrast with the flowers, which have a very soft appearance. At their tips, the stems develop numerous, nectar-rich decorative pinkish flower buds from summer to autumn, which will open into 7 to 10 cm (3 to 4in) diameter, fluffy heads, resembling carnations and attract many butterflies. The fringed ligules are sky blue and arranged around a white feathery central disc.

 

Stokesia laevis Blue Star is a fantastic ornamental plant with a pure and harmonious appearance that resembles wildflowers. Hardy and undemanding in terms of soil quality, it is happy in a sunny corner of the garden. It works well planted in groups with damask flowers and cosmos, in front of summer or autumn aster beds, accompanied by purple black-eyed Susans, shrubby salvias, daylilies, and gauras. It can also be used to create lovely drought-resistant pots and charming bouquets. In a natural-style garden, pair it with grasses such as stipas and fescues.

 

Stokesia laevis Blue Star in pictures

Stokesia laevis Blue Star (Flowering) Flowering
Stokesia laevis Blue Star (Foliage) Foliage
Stokesia laevis Blue Star (Plant habit) Plant habit

Flowering

Flower colour blue
Flowering time July to October
Inflorescence Flower head
Flower size 8 cm
Bee-friendly Attracts pollinators
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Evergreen
Foliage colour green

Plant habit

Height at maturity 60 cm
Spread at maturity 45 cm
Growth rate slow

Botanical data

Genus

Stokesia

Species

laevis

Cultivar

Blue Star

Family

Asteraceae

Other common names

Stokes' Aster

Origin

Cultivar or hybrid

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Planting and care

Stokesia laevis 'Blue Star' is easy to grow in ordinary, well-drained soil, in full sun. However, it will tolerate partial shade. A soil that retains moisture in winter is the main cause of failure. It is essential to add good drainage materials such as coarse sand, gravel or shingle to 30-40 cm (12-16in) deep in clay soil. Even though it likes moist soils, it tolerates drought well. Mulch over winter to protect the crown in the coldest regions. Cut off the faded flowers and regularly remove dried stems to encourage more flowers. This plant is not prone to diseases or pests.

Planting period

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

Intended location

Suitable for Meadow
Type of use Border, Edge of border, Container
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 withered stems down and clean up the old foliage at the end of winter. Regularly remove faded flowers to encourage more.
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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