Eranthis hyemalis
Common Name(s):
Previously known as:
- Aconitum hyemale
- Helleborus hyemalis
- Phonetic Spelling
- er-AN-thiss hy-eh-MAY-liss
- This plant has high severity poison characteristics.
- See below
- Description
-
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.
Seasons of Interest:
Bloom: Late Winter or Early Spring Foliage: Late Winter or Early Spring
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.
- See this plant in the following landscape:
- Cultivars / Varieties:
-
- Tags:
- Cultivars / Varieties:
-
- Tags:
-
-
Attributes:
- Genus:
- Eranthis
- Species:
- hyemalis
- Family:
- Ranunculaceae
- Life Cycle:
- Bulb
- Perennial
- Recommended Propagation Strategy:
- Division
- Seed
- Country Or Region Of 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.
- Play Value:
- Attracts Pollinators
- Colorful
- Edibility:
- Poisonous and can be fatal if ingested.
- Dimensions:
- Height: 0 ft. 3 in. - 0 ft. 6 in.
- Width: 0 ft. 3 in. - 0 ft. 6 in.
-
-
Whole Plant Traits:
- Plant Type:
- Bulb
- Ground Cover
- Herbaceous Perennial
- Perennial
- Poisonous
- Habit/Form:
- Clumping
- Columnar
- Erect
- Maintenance:
- Low
-
-
Cultural Conditions:
- 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 To Plant:
- Less than 12 inches
- NC Region:
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b
-
-
Fruit:
- Fruit Color:
- Green
- Display/Harvest Time:
- Spring
- Fruit Type:
- Capsule
- Fruit Description:
- The fruits are clustered, green, fleshy capsules, long-beaked, and surrounded by persistent sepals.
-
-
Flowers:
- Flower Color:
- Gold/Yellow
- Flower Inflorescence:
- Solitary
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Spring
- Winter
- Flower Shape:
- Cup
- Flower Petals:
- 6 petals/rays
- Flower Size:
- < 1 inch
- Flower Description:
- 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.
-
-
Leaves:
- Leaf Color:
- Green
- Leaf Type:
- Compound (Pinnately , Bipinnately, Palmately)
- Leaf Margin:
- Lobed
- Serrate
- Hairs Present:
- No
- Leaf Description:
- 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.
-
-
Stem:
- Stem Color:
- Brown/Copper
- Red/Burgundy
- Stem Is Aromatic:
- No
- Stem Description:
- Stout, rhizomatous or exposed red brown erect.
-
-
Landscape:
- 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
- Attracts:
- Bees
- Resistance To Challenges:
- Black Walnut
- Deer
- Drought
- Problems:
- Poisonous to Humans
- Problem for Cats
- Problem for Children
- Problem for Dogs
- Problem for Horses
-
-
Poisonous to Humans:
- Poison Severity:
- High
- 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.
- Poison Toxic Principle:
- Cardiac glycosides of the bufadienolide group
- Causes Contact Dermatitis:
- No
- Poison Part:
- Bark
- Flowers
- Fruits
- Leaves
- Roots
- Sap/Juice
- Seeds
- Stems