Snowdrop bulbs are planted in fall for late-winter flowers. Get them in the ground soon after they arrive — they establish best when roots have time to settle before hard freezes.
Planting
- Unbox right away. Open the package and store bulbs in a cool, dry, dark spot with air circulation until you can plant.
- Pick a spot. Choose full sun to partial shade with well-drained soil; under deciduous trees and shrubs is ideal since the canopy is still bare when Snowdrops bloom.
- Loosen the soil. Work the top 6 inches until crumbly and mix in compost if your soil is heavy clay.
- Set the depth. Plant bulbs 3 inches deep with the pointed end up and the flat basal plate down.
- Space for drifts. Place bulbs 3 to 6 inches apart in clusters of 10 or more for a natural look rather than straight rows.
- Water in. Backfill, firm gently, and soak the area once to settle the soil around the bulbs.
Watering
- Fall and spring. Keep soil lightly moist while roots and foliage are active; about an inch of water per week including rainfall.
- Summer dormancy. Stop supplemental watering once leaves yellow — dormant bulbs prefer drier soil and can rot in soggy ground.
Feeding
- At planting. Mix a balanced bulb fertilizer or bone meal into the planting area.
- Each year. Top-dress with compost or a low-nitrogen bulb food as shoots emerge in late winter.
Ongoing Care
- Let foliage ripen. Leave the leaves in place after flowering until they yellow naturally; that's how next year's flowers are fueled.
- Mulch lightly. A 1 to 2 inch layer of shredded leaves or bark moderates soil temperature without smothering shoots.
- Divide when crowded. Every 4 to 5 years, lift and separate clumps just after flowering while leaves are still green, then replant immediately.
- Containers. Use a well-drained potting mix, plant at the same 3-inch depth, and overwinter pots in an unheated garage or sheltered spot in the coldest zones.