Photo by Melody

PlantFiles: Gray-headed Coneflower, Pinnate Prairie Coneflower
Ratibida pinnata

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Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Ratibida (ruh-TIB-ih-duh) (Info)
Species: pinnata (pin-NAY-tuh) (Info)

Synonym:Lepachys pinnata
Synonym:Rudbeckia pinnata

13 vendors have this plant for sale.

20 members have or want this plant for trade.

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Category:
Perennials

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

Spacing:
15-18 in. (38-45 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)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Mid Summer
Late Summer/Early Fall

Foliage:
Herbaceous

Other details:
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

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
From seed; sow indoors before last frost
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

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There are a total of 8 photos.
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Profile:

4 positives
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral redcamaro350ss On Apr 29, 2009, redcamaro350ss from Statesville, NC wrote:

This plant DOES NOT like a lot of moisture. Started it from seed this year in a class at NCSU. The greenhouse workers flooded the flats continually which caused most plants to thrive but the Ratibidas have not done well at all. Moving them to a much drier place this week and hoping they will pull through.

Positive JedS On Dec 27, 2007, JedS from Shawnee Mission, KS wrote:

Awesome, tough, drought tolerant prairie plant that thrives in clay soil!!! Vibrant yellow flowers bloom in the middle of the hot, dry, eastern Kansas summers, and survive our winters too. I love to see American Goldfinches stand so balanced and feed on the tops of them while the plants sway in the wind.

Positive Illinois_Garden On Jan 4, 2006, Illinois_Garden from Fox River Grove, IL (Zone 5a) wrote:

I have several of these that I planted a two summers ago. They need absolutely no maintenance (they're native here), they enjoy nearly full sun in my garden, and they're drought tolerant. They bloom consistently from mid-July through the end of August. I have some issues with the wind beating them up quite a bit, in a natural state they're buffered by the other plants in the field, which isn't the case as border plants in my perennial garden.

Neutral tcfromky On Oct 11, 2004, tcfromky from Mercer, PA (Zone 5a) wrote:

Grayhead prairie coneflower is a perennial plant 3 to 5 feet tall. It is characterized by a number of lanceolate, toothed leaves in a clump. Few to numerous flower stalks arise from the clump with few leaves along the stalk.

Grayhead prairie coneflower is found in well-drained soils from moist to dry. It prefers full sun but can tolerate partial shade. It can be found in prairies, woodland edges and savannas.

Pioneers used the dried seed heads like cedar chips to protect clothing.

Positive gardengirl57200 On Sep 7, 2004, gardengirl57200 from Bismarck, ND (Zone 3b) wrote:

I received this plant compliments of a bird. They grow wild in the prairies here and do not transplant well, but do grow readily from seed. It looks very nice in with yarrow and Sweet William. It does self-seed but not to the extent that it becomes a pest. It tolerates the extremes of our weather very well.

Positive mrmcoy On Mar 22, 2004, mrmcoy from Seattle, WA wrote:

these are great plants! very low maintenence-I grew them for years in my garden in Indiana-the finches loved the dried seed heads, and I used to love watching them bob around on the dried stems working them for the seed-self sow, and the plants are fairly long lived as individuals as well-my best plants literally grew in gravel along the edge of a driveway where they sowed themselves-once that stand became established-they were so lovely and so tough! Even though they self sow I wouldnt characterize them as invasive at all-I never had any touble with them in that regard-great meadow plant. One thing I would say is that if you are the 'perfect well manicured' garden type-they are probably not your thing-they are rangey, gangley and full of character! they also attract butterflys, which is nice...

Regional...

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

Phoenix, Arizona
Menifee, California
Edgewater, Colorado
Havana, Florida
Oldsmar, Florida
Cordele, Georgia
Algonquin, Illinois
Anna, Illinois
Burr Ridge, Illinois
Kansas, Illinois
Lincoln, Illinois
Bertram, Iowa
Iowa City, Iowa
Derby, Kansas
Overland Park, Kansas
Plain Dealing, Louisiana
Lowell, Michigan
East Bethel, Minnesota
Kasota, Minnesota
Young America, Minnesota
Mathiston, Mississippi
Cole Camp, Missouri
Albuquerque, New Mexico
Country Knolls, New York
Wallkill, New York
Hemby Bridge, North Carolina
Pisgah Forest, North Carolina
Bismarck, North Dakota
Bowling Green, Ohio
New Miami, Ohio
Knoxville, Tennessee
Bessemer Bend, Wyoming



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