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Ranunculaceae HERB OUTDOOR Placement Primary: Ornamental

Winter Aconite

Eranthis hyemalis

Identified By Marcs

Winter Aconite is a charming, low-growing perennial tuberous plant belonging to the buttercup family Ranunculaceae, highly celebrated for producing some of the earliest bright yellow, cup-shaped flowers that emerge as early as late winter, often piercing directly through lingering snow cover. Indigenous to woodland areas and scrublands across mainland Europe and parts of Asia, this resilient species naturalizes exceptionally well under deciduous trees and in rock gardens, creating vibrant carpets of golden color before most other spring bloomers even begin to wake up from their winter dormancy.

Also known as: Winter-aconite

Toxicity & Safety

Is Winter Aconite toxic to pets?

Yes, toxic to pets.

Winter aconite contains highly toxic cardiac glycosides, specifically compounds like ranunculin which break down into protoanemonin, alongside other alkaloids that are extremely dangerous to dogs, cats, and horses. Ingestion of any part of the plant—especially the tubers—can lead to severe gastrointestinal distress, excessive drooling, vomiting, diarrhea, intense abdominal pain, irregular heart rhythms, and in severe cases, systemic collapse. Immediate veterinary intervention is critical if an animal is suspected of consuming this toxic plant.

Is Winter Aconite toxic to humans?

Yes, toxic to humans.

All parts of the Winter Aconite plant are considered highly toxic to humans if ingested due to the presence of potent cardiac glycosides and irritant compounds. Accidental consumption of the tubers or foliage can cause severe burning of the oral cavity, excessive salivation, vomiting, severe abdominal cramping, bloody diarrhea, dizziness, visual disturbances, and dangerous cardiac irregularities. Handling the raw plant sap may also trigger skin irritation or contact dermatitis in sensitive individuals, so gloves should always be worn during garden maintenance.

Is Winter Aconite safe during pregnancy?

Caution advised during pregnancy.

Due to the potent and dangerous cardiac glycosides and toxic alkaloids present throughout the Winter Aconite plant, it is strictly unsafe for pregnant or breastfeeding women. The systemic toxins can cross physiological barriers, potentially inducing severe uterine contractions, systemic poisoning, and profound cardiovascular complications that pose life-threatening risks to both the mother and the developing fetus. Any accidental ingestion or skin absorption requires immediate and emergency medical attention.

Growth & Dimensions

Height 5 - 15 cm
Width 5 - 10 cm
Growth Rate Moderate
Care Level Easy
Lifespan Perennial

Ideal Environment

Temperature -20°C - 25°C
Sunlight Hours 4 - 8 hrs/day
Sun Exposure Partial shade
Soil pH 6 - 7.5
Watering Interval 7 - 14 days
Humidity 40.00% - 80.00%
USDA Zone 3 - 7

Temperate Woodland

Climate: Thrives in temperate woodland climates featuring cold winters and cool, moist springs under deciduous tree canopies.

Soils: Loam Chalk Clay
Annual Rainfall: 600 - 1200 mm

Native Regions

Southern Europe
Central Europe
Balkans

How to Care for Winter Aconite

How should I handle moisture and watering management?

Winter aconite requires consistent moisture during its active growing and flowering period in the late winter and spring months. Ensure the soil remains evenly damp but never waterlogged. Once the foliage dies back and the plant enters its summer dormancy phase, drastically reduce watering as dry summer conditions help prevent the delicate underground tubers from rotting.

How to Propagate Winter Aconite

How to propagate Winter Aconite by division?

Propagate winter aconite by carefully lifting the dormant tubers in late spring or early summer right after the foliage has died back entirely. Gently separate the small tuberous clusters or offsets and immediately replant them at a depth of about 5 cm in a shaded, well-prepared garden location with moist, humus-rich soil to establish strong root systems before the next winter season arrives.

Common Diseases & Pests of Winter Aconite

What is Tuber Rot and how is it treated?

Fungal
Symptoms:

Tuber rot manifests as sudden yellowing, wilting, and premature collapse of the above-ground foliage, followed by soft, mushy, and foul-smelling underground tubers when inspected. The fungal pathogens attack compromised or waterlogged storage organs during wet summer dormant periods.

Treatment:

Immediately remove and destroy severely infected plants and surrounding contaminated soil. Improve garden drainage dramatically and apply a bio-fungicide if neighboring plants are at risk of contracting the soil-borne pathogens.

Prevention:

Plant winter aconite tubers in well-draining soil enriched with organic matter, and avoid planting them in low-lying areas where water pools significantly during heavy seasonal rains or snowmelts.

Properties & Benefits of Winter Aconite

Bears Fruit

Key Nutrients / Compounds

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