Meadow Buttercup
Ranunculus acris

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Ranunculus (ra-NUN-ku-lus) (Info)
Species: acris (AK-riss) (Info)

Category:

Perennials

Height:

18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

Spacing:

9-12 in. (22-30 cm)

Hardiness:

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)

Sun Exposure:

Full Sun

Sun to Partial Shade

Light Shade

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

Bright Yellow

Bloom Time:

Late Spring/Early Summer

Mid Summer

Foliage:

Herbaceous

Smooth-Textured

Other details:

May be a noxious weed or invasive

Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

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; sow indoors before last frost

From seed; direct sow after last frost

Seed Collecting:

Bag seedheads to capture ripening seed

Regional

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

Pompano Beach, Florida

Ludington, Michigan

Saginaw, Michigan

Neptune, New Jersey

Hamilton, Ohio

Xenia, Ohio

Millersburg, Pennsylvania

Troy, Pennsylvania

Summerville, South Carolina

Sugar Land, Texas

show all

Gardeners' Notes:

2
positives
0
neutrals
0
negatives
RatingContent
Positive

On Dec 5, 2012, RosinaBloom from Waihi
New Zealand (Zone 1) wrote:

Ranunulus acris is one of the more commonly introduced perennial buttercups which varies in appearance worldwide. Ranunculus is Latin for "little frog" - frogs, and supposedly buttercups, live near water. The leaves and stems contain an acrid poisonous juice which protects the plant from herbivorous animals, and if ingested can cause inflammation and swelling.
Though a golden meadow of buttercups is a lovely site to see, in New Zealand they are a pasture weed costing the dairy industry greatly, and they are one of the few pasture weeds that have built up a resistance to herbicides.
As children we would hold a buttercup flower under our chin, and depending on the shade of your skin the buttercup would reflect its yellow, which was taken to mean that you loved butter. A lovel... read more

Positive

On May 4, 2006, Kim_M from Hamburg, PA (Zone 6b) wrote:

This is my favorite plant. I haven't found it to be invasive yet. So far it has stayed in it's place. I love the glossy yellow flowers and it's so happy in my garden. I grew it last year from seed. It has bloomed for the first time in April. Very very lovely plant.