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Polemonium Sonia's Bluebell

Polemonium Sonia's Bluebell
Jacob's Ladder, Greek Valerian

4,4/5
2 reviews
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1 reviews
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Very lovely young plant, beautiful foliage and flowers of a very beautiful blue. It has withstood the winter very well.

Eric, 27/04/2019

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This plant carries a 12 months recovery warranty

More information

Polemonium Sonia's Bluebell is a beautiful hardy perennial with abundant pale mauve flowers on a bushy habit.
Flower size
2 cm
Height at maturity
50 cm
Spread at maturity
30 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Recommended planting time February to May, September to November
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Flowering time May to July
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Description

Polemonium Sonia's Bluebell, or Greek Valerian, is a beautiful sturdy perennial with a bushy habit appreciated in spring for its pale mauve cut flowers.

Easy to grow, this hardy rhizomatous perennial, with a 50 cm (20 in) spread, develops deciduous, alternate, pinnate leaves, purple at first then dark green when mature. In May, pale mauve bell-shaped flowers grouped in clusters at the end of sturdy stems open throughout spring.

Polemonium Sonia's Bluebell thrives in sunny or semi-shaded locations with moist, well-drained soil. It self-seeds very well once established.

In the garden, plant it in a mixed border or a romantic-inspired bed alongside bellflowers, yarrows, roses, catmints, or speedwells.

Polemonium Sonia's Bluebell in pictures

Polemonium Sonia's Bluebell (Foliage) Foliage

Flowering

Flower colour blue
Flowering time May to July
Flower size 2 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous

Plant habit

Height at maturity 50 cm
Spread at maturity 30 cm
Growth rate normal

Botanical data

Genus

Polemonium

Cultivar

Sonia's Bluebell

Family

Polemoniaceae

Other common names

Jacob's Ladder, Greek Valerian

Origin

Cultivar or hybrid

Product reference96411

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Planting and care

Polemonium Sonia's Bluebell is easy to grow. It should be planted in a moist but well-drained soil. Its lifespan is short, around 3-4 years, but the plant readily self-seeds and persists in gardens for a long time.

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Planting period

Recommended planting time February to May, September to November

Intended location

Suitable for Meadow
Type of use Border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Neutral
Soil type Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, drained, humus-rich

Care

Pruning instructions Remove some of the faded flowers to achieve a second flowering and better foliage retention. Do not cut everything as this short-lived perennial ensures its longevity through its spontaneous sowing.
Pruning Pruning recommended once a year
Pruning time July to August
Overwinter Can be left in the ground
4,4/5
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