Early Meadow-Rue (Thalictrum dioicum)
thah-LIK-trum dioicum

Deciduous Perennial Upright, Delicate Habit in the Ranunculaceae Family
Note: Spring ephemerals have evolved take advantage of sunlight which penetrates deciduous forests before the trees fully leaf out and then shut down for the year by the end of spring to rest until the next year. When buying them in summer you typically won't see anything above the ground until the next April!
A delicate native woodland ephemeral with early spring blooms.

Thalictrum dioicum, Early Meadow-Rue, is a delicate woodland perennial native to eastern North America, including Illinois, where it is found in rich, shaded woods and near cliffs and rock outcrops. Finely divided, maidenhair-fern-like foliage rises on slender stems 2-3ft tall. True to its name (dioicum means dioecious), separate male and female plants bear distinct flowers in early-to-mid spring, before the tree canopy fully leafs out - male plants show showier, drooping yellow-green stamens, while female flowers are more subdued. The plant goes dormant and dies back by summer, true ephemeral behavior. Best suited to a shaded native woodland garden, where its airy texture pairs well with spring ephemerals and ferns.

Pros

  • Illinois native woodland ephemeral
  • Deer resistant
  • Thrives in shade where little else blooms
  • Delicate fern-like foliage

Cons

  • Goes dormant by summer, leaving a gap
  • Dioecious - need both sexes nearby for seed set
  • Short-lived bloom window
 

Plant Data

Mature Size 24 - 36 inches tall. 24 - 36 inches wide.
Sun Exposure Full Shade - Partial Sun
Moisture Tolerance Medium
Zones 4a - 7b (Usually hardy to -30° F)
Tags Deciduous, Deer Resistant, Full Shade, Illinois Native, Medium, Native to North America, Partial Shade, Partial Sun, Perennial, Spring Ephemeral, Woodland Garden
Bloom Period April to May
Flower Color Yellow-Green flowers with Purple sepals.
 

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Photos of This with...

White Baneberry, Common Burdock
 
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Pricing and Availability History

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Past Availability
2025 : 04/03 - 10/04
2024 : 05/01 - 10/05
2023 : 07/06 - 09/30

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Field-Grown vs. Greenhouse-Grown Plants

Plants which are well-adapted to our local climate are most often field-grown (outside). Field-grown plants are generally cheaper and have the advantage of already somewhat acclimated to our cold winters, but that means they’re not artificially far along in the spring and tend to bloom at the normal time in our area.

Spring annuals and tender perennials are typically grown in Greenhouses so they can be ready and luxurious exactly when customers want them. Some perennials are also “forced” into early bloom in greenhouses. In May, there can be a very big difference between field-grown and greenhouse-grown plants of the same type. The latter typically look good right away (so they’re a great choice where that’s important), but we typically pay a premium for it.


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No Pricing or Availability Right Now

We order from a rotating cast of the best nurseries in the Great Lakes region. It looks like we've offered this plant in the past, but the nurseries we're working with this week don't appear to have it in stock at the moment.

Our goal is to bring as many plants together under "one roof" as possible, so we'll try hard to make it available again in the future!