Students for Stewardship The Cork Board
← Back to the library

Winter Aconite

Eranthis hyemalis (er-AN-thiss hy-eh-MAY-liss)

Family: Ranunculaceae Non-native Groundcover (<1 ft)

Winter aconite is a low-maintenance tuberous perennial that blooms in rounded clumps in late winter or early spring. It has showy, solitary, bright yellow, cup-shaped blooms that are surrounded by bright green leafy bracts. The basal leaves are rich green and divided into palmate or pinnate lobes. The plant is low-growing and measures 3 to 6 inches tall and about 6 inches wide. They are excellent for long, winter-blooming displays, but it goes dormant by late spring and summer. This plant is a member of the Ranunculaceae or buttercup family and is native to southeast France, as far east as Bulgaria, and is found in woodlands and meadows. The genus name, Eranthis , is from two Greek words, Er meaning spring, and anthos meaning early flowering. The specific epithet, hyemalis, means winter blooming. Winter Aconite tolerates full sun to partial shade, and it will thrive in locations that receive 5 to 6 hours of direct sunlight daily. The soil must be rich in organic material, well-drained, and have an alkaline pH, preferably. This bulb is intolerant to bright winter sun and high temperatures. The tubers are best planted in late summer to early fall. Plant them 2 to 3 inches deep and about 3 inches apart. This plant can be injured in temperatures below 5 degrees F (-15 degrees C). It tolerates drought, but make sure to keep the soil moist during the growing season. Propagate by direct sowing seeds in the fall or division after the blooming season is completed. Numerous hybrid selections and species are available but are often difficult to distinguish and are misidentified in trade, or mislabeled as Lenten rose. This delightful yellow flower will add a splash of color to rock gardens, beds, walkways, and woodland gardens. Utilize it for border fronts or patios in protected, shady locations, or let it naturalize in the landscape. Because of their small size, they are best planted in drifts for a greater impact of color or planted in mass under trees. Winter Aconite is resistant to browsing by deer and can be planted near a black walnut tree. Exercise caution if you have pets or small children. The plant and tuber are poisonous if ingested. Wear gloves and other protective clothing when handling this plant. Quick ID Hints : Flowers nodding, petaloid sepals Short plant with stiff, large, green leaves Leaves are palmately divided into many leaflets Flower center of numerous stamens outlined by tubular nectaries, or fleshy, beaked capsules Insects, Diseases, and Other Plant Problems: Winter Aconite has no serious insect or disease problems. Fungal diseases are occasional problems.

Source: NC State Extension Gardener Plant Toolbox ↗ NC State Extension Gardener Plant Toolbox, 59 attributes.

How it fits the guild

Guild layer 5 - Groundcover (<1 ft) Optimal soil pH Alkaline (>8.0)
See companions & conflicts ↓

Companions & Conflicts

Curated pairwise relationships between this plant and others in the library — who feeds whom, who competes, who confuses the pests. Green reads as a good pairing, red as one to avoid.

No curated interactions recorded for this species yet.

Also noted by NC State

Related species the NC State Plant Toolbox flags for this plant — look-alikes to tell apart, and plants that play a similar role in a planting. Ones we carry in the library are linked.

Fills a similar niche Helleborus orientalis Lantana camara 'Ham and Eggs' Narcissus

Full plant profile

Growing Conditions
Plant type
Bulb; Ground Cover; Herbaceous Perennial; Perennial; Poisonous
Life cycle
Bulb; Perennial
USDA zones
3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b
Light
Full sun (6 or more hours of direct sunlight a day) | Partial Shade (Direct sunlight only part of the day, 2-6 hours)
Soil texture
High Organic Matter
Soil pH
Alkaline (>8.0)
Soil drainage
Good Drainage | Moist
Available space
Less than 12 inches
NC region
Mountains; Piedmont
Mature size
Height: 0 ft. 3 in. - 0 ft. 6 in. | Width: 0 ft. 3 in. - 0 ft. 6 in.
Maintenance
Low
Canopy layer
5 - Groundcover (<1 ft)
Form & Appearance
Habit / form
Clumping; Columnar; Erect
Leaf color
Green
Leaf type
Compound (Pinnately , Bipinnately, Palmately)
Leaf margin
Lobed; Serrate
Hairs present
No
Leaf detail
Basal or cauline, palmately compound, coriaceous, glabrous. The petioles that flank the flowers look like leaves are elongate, peltate; leaflets 3-9, irregularly toothed or serrate.
Flower color
Gold/Yellow
Flower value
Showy
Flower form
Solitary
Flower shape
Cup
Flower size
< 1 inch
Flower detail
Blooms in late winter to early spring on 3 to 4-inch tall stalks from February to March. The green bracts form a collar surrounding the flowers and are leaf-like, dark green, entire to sparsely toothed, +/- lobed. The flowers have 6 petals and are showy, pigmented, and broadly ovate-elliptic. The inner petal segments are numerous and consist of tubular nectaries that are green to greenish-yellow. The stamens are numerous, and the anther is yellow. The bright yellow cup-shaped flower measures 1 inch in diameter.
Bloom time
Spring; Winter
Fruit color
Green
Fruit type
Capsule
Fruit detail
The fruits are clustered, green, fleshy capsules, long-beaked, and surrounded by persistent sepals.
Stem color
Brown/Copper; Red/Burgundy
Stem detail
Stout, rhizomatous or exposed red brown erect.
Wildlife & Ecology
Native status
Non-native
Origin
Asia Minor and Europe
Distribution
Native: Bulgaria, France, Italy, Lebanon-Syria, and Yugoslavia. Introduced: Belgium, Canada--Ontario, Czechoslovakia, Denmark, Finland, Germany, Great Britain, Netherlands, Norway, Romania, Sweden, Switzerland, and the United States--DC, IL, MD, NY, NC, OH, and PA
Wildlife value
Bees are attracted to the nectar and pollen in the flowers.
Attracts
Bees
Play value
Attracts Pollinators; Colorful
Food & Medicine
Harvest time
Spring
Fruit type
Capsule

Edibility

Poisonous and can be fatal if ingested.

Landscape Use
Landscape location
Container; Naturalized Area; Patio; Rock Wall; Small Space; Walkways; Woodland
Landscape theme
Drought Tolerant Garden; Pollinator Garden; Rock Garden; Winter Garden
Design feature
Border; Mass Planting
Garden tags
#rock garden #yellow flowers #bedding plants #poisonous #fantz #HS302 #pollinator plant #understory planting #flowering bulb #showy flowers #winter interest #flowers early spring #border front #low maintenance #naturalized area #mass planting #flowers late winter #bee friendly #landscape plant sleuths course #problem for dogs #problem for cats #poisonous if ingested #problem for children #problem for horses #patio #low growing #walkway
Problems & Resistance
Problems
Poisonous to Humans; Problem for Cats; Problem for Children; Problem for Dogs; Problem for Horses
Resistant to
Black Walnut; Deer; Drought
Propagation
Division; Seed
Poison severity
High
Poison parts
Bark; Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems
Poison symptoms
HIGHLY TOXIC, AND MAY BE FATAL IF EATEN! Stomach pain, nausea, vomiting, diarrhea, disturbed vision, shortness of breath, irregular pulse, coma, colic, bradycardia, potential cardiac arrest, or sudden death.
Toxic principle
Cardiac glycosides of the bufadienolide group
Contact dermatitis
No
Toxicity summary
High severity poison; parts: Bark; Flowers; Fruits; Leaves; Roots; Sap/Juice; Seeds; Stems

Planted at Hunnicutt

Nobody’s planted this one yet.