Ranunculus tubers look like small clawed corms. Unpack them as soon as they arrive and keep them cool, dry, and out of direct sun until planting time.
Planting
- Time it right. In zones 8-10, plant in fall for spring flowers. In zones 6-7, plant in early spring once the soil can be worked, or start indoors in pots and move out after frost.
- Pick full sun. Choose a spot with at least 6 hours of direct sun and loose, well-drained soil; avoid low areas where water sits.
- Presoak the claws. Soak tubers in room-temperature water for 3-4 hours before planting to jump-start growth.
- Set them claws down. Plant 2 inches deep with the pointed claws facing downward, spaced 4-6 inches apart.
- Backfill and water in. Cover with soil, firm gently, and water once to settle the bed.
Container Planting
- Use a draining pot. Choose a container with holes and a light, well-drained potting mix.
- Group for impact. Space tubers 4 inches apart and place the pot in your sunniest spot; move it as the season shifts.
Watering
- Keep it evenly moist. Water when the top inch of soil feels dry during active growth and bloom.
- Do not overdo it. Soggy soil rots the tubers, so let the surface dry between waterings.
- Ease off after bloom. Reduce watering as the foliage yellows and the plant goes dormant.
Feeding
- Start with balanced food. Mix a slow-release, balanced fertilizer into the bed at planting.
- Boost during bloom. Apply a liquid bloom fertilizer every 2-3 weeks while buds are forming.
Cutting & Cleanup
- Cut often. Harvest stems when buds feel like a marshmallow, just before full opening, to trigger more flowers.
- Deadhead spent blooms. Remove faded flowers to keep energy going into new buds.
- Let foliage fade. Leave leaves in place until they yellow so the tuber can recharge.
Overwintering
- Zones 8-10. Leave tubers in the ground and mulch lightly; they will return next season.
- Zones 6-7 and colder. Treat as annuals, or lift the tubers after the foliage dies back, dry them, and store in a cool, dry place until spring.