How to plant
When to plant
Plant Erythronium bulbs in autumn while the soil is still warm. This allows the bulbs to root before winter. Avoid spring planting, as bulbs easily dry out and establish poorly outside their natural cycle.
Where to plant
Choose a shaded or partially shaded location. Erythronium thrives under deciduous trees, in woodland borders, at the edge of shrubs, and in cool, moist, sheltered areas. Avoid hot, sunny, or exposed sites.
Preparing the soil
Loosen soil to 20–25 cm and mix in leaf mould, compost or other organic matter. Erythronium prefers humus-rich, moisture-retentive but well-drained soil. Heavy clay can be improved with fine bark and grit; sandy soil benefits from extra compost.
Preparing the bulbs
Plant bulbs as soon as possible after receiving them — Erythronium bulbs dry out quickly. Do not soak. Handle gently, as the elongated bulbs are fragile and can snap easily.
Planting the bulbs
Plant bulbs 8–10 cm deep, with the pointed end facing upward. Space 15–20 cm apart for natural-looking drifts. Firm the soil lightly and water to settle the bulbs.
After planting
Keep the soil lightly moist during autumn as bulbs establish. Mulch with leaf mould to mimic their natural woodland habitat and help conserve moisture.
During growth
Water during dry periods in spring, but avoid waterlogging. Do not disturb the soil around the plants. Remove only completely yellowed leaves — they feed the bulb for the next year’s flowers.
After flowering
Allow foliage to die back naturally. Erythronium goes dormant in early summer — do not water or disturb the bulbs during this time. Mark the planting area so you know where bulbs are located.
Extra tips
Erythronium naturalises beautifully under trees and shrubs. Avoid lifting or dividing unless necessary; they prefer to remain undisturbed. Combine with ferns, hellebores and hostas for a classic woodland effect. A yearly top-dressing of leaf mould keeps them thriving.
