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PlantFiles: Yunnan Meadow Rue, Chinese Meadow Rue
Thalictrum delavayi

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Thalictrum (tha-LIK-trum) (Info)
Species: delavayi (del-uh-VAY-ee) (Info)

Synonym:Thalictrum dipterocarpum

One vendor has this plant for sale.

7 members have or want this plant for trade.

Category:
Perennials

Height:
36-48 in. (90-120 cm)

Spacing:
18-24 in. (45-60 cm)

Hardiness:
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)

Sun Exposure:
Light Shade

Danger:
Unknown - Tell us

Bloom Color:
Violet/Lavender

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous
Blue-Green

Other details:
Average Water Needs; Water regularly; do not overwater
This plant is attractive to bees, butterflies and/or birds

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
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:
Collect seedhead/pod when flowers fade; allow to dry
Properly cleaned, seed can be successfully stored

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By Terry
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There are a total of 11 photos.
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Profile:

4 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive samting On Sep 19, 2010, samting from Pekin, ND wrote:

I have grown this lovely plant for three years--yes, it survives my z 3 winters! I live in a wooded valley so it has protection from the cold winds and I do pile leaves over the plant in the fall. It is gorgeous now! Would like to find and plant more and also get the white one.

Positive SW_gardener On Mar 15, 2006, SW_gardener from (Zone 6a) wrote:

One of my favorite plants for sure. Grows quite tall (over 5 feet) and looks great at the back of the border. It also has very nice ferny foliage that looks quite a bit like a maiden hair fern and in late summer it has huge airy panicles of purple flowers (which are actualy purple sepals with clusters of yellow stamens). A great plant for the part sun/shade garden!! Needs good soil and waterings.

Positive MN_Darren On May 25, 2004, MN_Darren from Saint Paul, MN wrote:

I collect and hybridize Thalictrums, so I know all the garden varieties quite well. This is my favorite in the mid-height range of the genus. They are a bit more moody than the T. rochebrunianum, but not terribly difficult. They are less bug-prone than some Thalictrums. They like some sun, but do best with shade from intense sun. I give them a bit more acidic conditions than other species. They are very similar to the T. rochebrunianum, except they are shorter (about one meter) and the foliage is finer and more fern-like. One important note--like the 'Hewitt's Double' they are very late to come out of the ground in Spring, and the shoots are very small, fine and ghostly. Mark the location carefully so you don't ruin them. In my experience, individual plants are short lived, but they reseed easily, so make sure that you let some seeds ripen. Also, they have thin stems that might need staking. I give them a bit of bark mulch to protect them, fertilizer and moderate water. You want some of these. Trust me.

Positive Terry On Mar 8, 2001, Terry from Murfreesboro, TN (Zone 7a) wrote:

This tall herbaceous perennial needs a place near the back of the flower bed that is exposed to partial shade. A moist, well-drained soil is preferred. The lavender flowers appear in late summer and the colorful sepals remain on the plant longer than those of other species. Where winters are severe, provide winter protection.

This is the third year for my plants, and I even uprooted them this spring to move them to a new spot. They never missed a beat, and are putting on a great deal of blooms this year.

Regional...

This plant has been said to grow in the following regions:

Arroyo Grande, California
Clayton, California
Mount Prospect, Illinois
Eveleth, Minnesota
Saint Paul, Minnesota
Lincoln, Nebraska
Grassy Creek, North Carolina
Pekin, North Dakota
Williamsburg, Ohio
Murfreesboro, Tennessee
Seattle, Washington



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