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Thalictrum flavum ssp. glaucum
(thah-LIK-trum  FLAH-vum  subsp.  GLOW-kum)
syn. Thalictrum flavum ‘Glauca’; T. rugosum; T. speciosissimum
Family:
Ranunuculaceae

Common name: yellow meadow rue; dusty meadow rue; glaucous-leaved yellow meadow rue
Zone: 5 – 9
Height: 36-48 in (90-120cm)   Spread: 18-24 in (45-60cm)
Aspect: full sun; partial shade
Soil: average; well-draining
Water: moderate    

Description: An herbaceous perennial with an upright clump-forming habit. Lovely, blue-green aquilegia-type (columbine) leaves. Panicles of lemon-yellow flowers are petal-less and fringed. Flowers in late June through into autumn.

 

Special Notes: The yellow flowers in this species is a hiatus from the dominating pinks, lilacs and purples throughout the rest of this genus. In actual fact, the colour comes from the abundant yellow stamens of its flowers. This plant may need staking in windy locations. Attracts bees and butterflies. Relatively few pests and disease problems but watch for powdery mildew. Propagate by seed or by division in early spring or autumn. Will self-sow.

 

RHS Award of Garden Merit 1993

 

Posted on April 28, 2013