How to Plant Ranunculus Flower Bulbs
Fast Facts
- Planting season
- Fall, Spring
- Life cycle
- Annual, Perennial
- Seed prep
- Soaking
- Light
- Full Sun, Partial Shade
- Water needs
- Low
- Planting depth
- 2 to 3 inches, Top of Root Should Be No More Than 1 to 2 inches Below Soil
- Spacing
- 2 to 6 inches, 4 to 6 inches
- Mature height
- 12 to 15 inches, Varies
- Hardiness zones
- 8 to 11
- Bloom season
- Late Spring through Summer, Spring, Spring through Late Spring
Ranges cover every variety in this group. Check the product page for the exact figures.
About Ranunculus Flower Bulbs
Ranunculus Flower Bulbs grow in full sun, partial shade positions. Expect 12 to 15 inches or varies at maturity. The figures below are the ones on the packets in this group; each product page carries the exact numbers for that variety.
When to plant
Plant in fall, spring. Bulbs go in while the soil is still workable, and want to be in the ground long enough to settle before it freezes. Soaking or nicking the seed coat before sowing speeds up and evens out germination. Hardy in zones 8 to 11 — your local frost dates decide the exact week.
Where to plant
Choose a site in full sun, partial shade. Water needs are low once the plants are established. Drainage matters more than anything else: bulbs sitting in wet winter soil rot. Allow 2 to 6 inches or 4 to 6 inches between plants so air can move between them. Plan for 12 to 15 inches or varies of growth when you place them in a bed or border.
How to plant
Set the bulb 2 to 3 inches or top of root should be no more than 1 to 2 inches below soil deep, pointed end up, spaced 2 to 6 inches or 4 to 6 inches apart. Water gently to settle the soil, then keep the surface evenly moist until seedlings or shoots appear.
How to care
Keep watering low, at the base of the plant rather than over the leaves. In zones 8 to 11 these come back each year: let the foliage die down naturally after flowering, since that is what feeds next season's growth.


