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Crambe cordifolia (Colewort)

Crambe cordifolia Photo/Illustration: Michelle Gervais

(Based on 1 user review)

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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11
Botanical Name: Crambe cordifolia KRAM-bee kor-dih-FOE-lee-ah Common Name: Colewort Genus: Crambe
This species is notable in stature, forming a giant mound and producing a profusion of airy white flowers on tall stems in late spring to midsummer and then dying down in midsummer to late summer. Colewort can reach 8 feet high and about half as wide. Grow in a large border or open woodland.
Noteworthy characteristics: Large leaves and abundant flowers.
Care: Prefers fertile, well-drained soil in full sun, but will tolerate poorer soils in partial shade. It is susceptible to rot in moist soils, and may be short-lived. It tends to survive winters beyond Zone 6.
Propagation: Sow seed in a cold frame in spring or fall.
Problems: Clubroot, black rot, slugs, snails.
Height 6 ft. to 10 ft.
Spread 3 ft. to 6 ft.
Growth Habit Clumps
Growth Pace Fast Grower
Light Full Sun to Part Shade
Moisture Dry to Medium
Maintenance Low
Characteristics Self Seeds; Showy Flowers; Showy Foliage
Bloom Time Early Summer; Late Spring; Spring; Summer
Flower Color White Flower
Uses Beds and Borders, Specimen Plant/ Focal Point
Style Cottage Garden
Seasonal Interest Spring Interest, Summer Interest
Type Perennials

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