Thalictrum Species, Early Meadow-Rue, Early, Dioecious Meadow Rue, Quicksilver Weed

Thalictrumdioicum

Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus
Thalictrum (tha-LIK-trum)
Species
dioicum (dy-oh-EE-kum)
Synonym
Leucocoma dioica
Thalictrum laevigatum
Thalictrum pauciflorum
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Herbaceous
Smooth
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
24-36 in. (60-90 cm)
Spacing
18-24 in. (45-60 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Bloom Color
Pale Yellow
White/Near White
Bloom Time
Mid Summer
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Sebastopol, California

Geneva, Illinois

Warren, Indiana

Iowa City, Iowa

Royal Oak, Michigan

Minneapolis, Minnesota

Frenchtown, New Jersey

Brooklyn, New York

Buffalo, New York

Leesburg, Virginia

show all

Featured Videos

Gardener's Notes:

2
positives
1
neutral
0
negative
Sort By:
Sort By:
G
Geneva, IL | April 2012 | positive

Plant is growing in my yard 20 feet from a river. Looks like a columbine in early spring then it sends up a strong tall (compared to a co...Read More

M
Coon Rapids, MN (Zone 4a) | March 2006 | positive

Early meadowrue is a plant that is rarely seen in the plant market, even native nurseries. This is a small plant, for me rarely growing ...Read More

T
St. John's, NL (Zone 5b) | February 2005 | neutral

This species is a common wildflower along damp to wet areas of Newfoundland. They grow in bogs, fens, streamsides, pond margins. Foliag...Read More

Featured
Malthaca Philenora
(Philenora malthaca)
American Black Vulture
(Coragyps atratus)
Featured
Malthaca Philenora
(Philenora malthaca)
American Black Vulture
(Coragyps atratus)