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Thalictrum delavayi 'Hewitts Double'

Meadow rue

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Key information

Plant type

Hardy perennial

Flower colour






Skill level


photo by Paul Debois, copyright GAP Photos (11870)

Plant details

Hewitt's Double' has light airy sprays of flowers that look, from a distance, like a mauve mist hovering among other plants. They are invaluable for providing a contrast with heavier flowers and especially with spikes and trumpet shapes. Since the plants grow well in light shade, use them between lilies, roses and Campanula pyramidalis to complete a traditional old-fashioned effect. No support is necessary when the plants are grown among others, but don't allow plants to be swamped by over-vigorous neighbours, or they will not thrive. To make sure the plants remain vigorous divide them every two to three years as soon as growth begins in spring. This is also a good way of propagating plants. The Royal Horticultural Society has given it its prestigious Award of Garden Merit (AGM).

Family: Ranunculaceae

Genus: Thalictrum

Species: delavayi

Cultivar: Hewitts Double

Plant type: Hardy perennial

Flower colour: Lavender

Foliage colour: Mid-green

Feature: Flowers

Sun exposure: Full sun, Partial shade

Soil: Moist

Hardiness: Hardy

Skill level: Beginner

Height: 120cm

Spread: 60cm

Time to divide plants: March to April

Flowering period: July to September

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