Columbine meadow rue Thalictrum aquilegiifolium Photo/Illustration: Linda Wesley 1 2 3 4 5 6 7 8 9 10 11 Columbine meadow rue (Thalictrum aquilegiifolium) thah-LIK-trum ak-will-ee-zsee-eye-FOE-lee-um Genus: Thalictrum The lacy leaves of this meadow rue look like a columbine's, hence the common and scientific names. But the leaves are actually gray-green and more delicate than its namesake. It bears clusters of long-lasting cottony flowers in shades of lilac, purple, or white in early summer. It is suitable for naturalizing in a meadow or woodland. These perennials grow to about 3 feet tall and half as wide. Noteworthy Characteristics: Thalictrum are native to stream banks, shaded mountains, and moist meadows throughout most of the globe. Care: Provide moist, humus-rich soil in full sun or part shade. Thalictrum are late to emerge in mid- to late spring. Propagation: Sow seed in a cold frame when fresh; divide as new growth appears in spring. Problems: Powdery mildew, rust, white smut, leaf spots, slugs. Overview Height 1 ft. to 3 ft. Spread 1 ft. to 3 ft. Growth Habit Clumps Growth Pace Moderate Grower Light Full Sun to Part Shade Moisture Medium to Wet Maintenance Low Characteristics Showy Flowers, Showy Foliage Bloom Time Early Summer Flower Color Pink Flower, Purple/Lavender Flower, White Flower Uses Beds and Borders, Cut Flower, Ground Covers, Naturalizing, Waterside Style Cottage Garden, Meadow Garden, Shade, Woodland Garden Seasonal Interest Spring Interest Type Perennials Related Plants to Thalictrum aquilegiifolium 1 2 3 4 5 6 7 8 9 10 11 Meadow rue Thalictrum rochebruneanum 1 2 3 4 5 6 7 8 9 10 11 Sage Salvia nemorosa 1 2 3 4 5 6 7 8 9 10 11 Meadow clary Salvia pratensis 1 2 3 4 5 6 7 8 9 10 11 Foam flower Tiarella wherryi 'Oakleaf' View the discussion thread.