Photo by Melody

PlantFiles: Early Buttercup
Ranunculus fascicularis

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Ranunculus (ra-NUN-ku-lus) (Info)
Species: fascicularis (fas-sik-yoo-LAIR-iss) (Info)

One vendor has this plant for sale.


under 6 in. (15 cm)

6-9 in. (15-22 cm)
9-12 in. (22-30 cm)

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)

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
Bright Yellow

Bloom Time:
Mid Spring
Mid Fall

Unknown - Tell us

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:
Unknown - Tell us

Propagation Methods:
From seed; stratify if sowing indoors

Seed Collecting:
Unknown - Tell us


2 positives
No neutrals
No negatives

Gardeners' Notes:

Positive jameso On Mar 28, 2012, jameso from Longview, TX wrote:

Very pretty blooms. It's now at the end of March and the blooming period seems to be gone.

Positive dkm65 On Aug 16, 2007, dkm65 from Cedar Falls, IA (Zone 4b) wrote:

One of the earlier spring-blooming native prairie plants (it is native from MN to KS, NE, eastern CO, OK, TX, and east ex. FL). It is short, usu. 2-6", but can get a couple inches taller in ideal conditions. It can re-bloom in mid fall (Oct. in the upper midwest), although this isn't guaranteed. We've planted it in a rarely mowed path of buffalo and blue grama grass and flagstones between two native garden beds and a native rain garden, along with prairie, birdsfoot, and labrador violets and pasque flowers to provide some spring interest in the grasses which don't green up until May. The buttercup becomes largely invisible after the grasses start growing, until the fall bloom.

Mildly drought tolerant (can go several weeks without any water), although it isn't appropriate for an unwatered garden in the driest parts of the West. It likes well-drained soils, but can do fine in the rainier east on less than ideal soils.

From seed, cold moist stratify for 4-6 weeks for best germination. Available from a number of native plant nurseries as both plants/rootstock and seed.


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

Cedar Falls, Iowa
Longview, Texas

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