Early Meadow-rue

Thalictrum dioicum

Summary

Early meadow rue is early to the party indeed, flowering just as trees are beginning to leaf out in spring. It’s a graceful woodland perennial, with delicate foliage similar to columbine. While its unusual flowers seem to lack petals, they more than make up for it with long stamens or pistils that resemble tassels. It’s dioecious, meaning that male and female flowers are borne on separate plants, so it’s best to plan for several of each in close proximity for optimal pollination. The male stamens are yellowish, while the female pistils are of a light purple hue. This woodland beauty prefers light shade or dappled sunlight and moist, rich soil.

More Details

FAMILY

Ranunculaceae (Buttercup)

BLOOM TIME

April-May

FLOWER

Green, purple

MATURE SIZE

1-2 feet

LIGHT REQUIREMENT

Part shade

SOIL CONDITIONS

Moist

NATIVE STATUS

PA Native

Ecosystem Connections

The caterpillars of the Canadian owlet (Calyptra canadensis), meadow-rue borer (Papaipema unimoda) and white striped black (Trichodezia albovitatta) rely upon meadow rue species as a host plant.

White-tailed deer (Odocoileus virginianus) occasionally may browse on the foliage of early meadow rue.  Nongame birds and small mammals may consume the seeds.

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