Ranunculus Planting Instructions
1. Timing
Zones 8–11 (mild winter climates): Plant ranunculus corms in the fall for blooms in late winter to early spring.
Zones 4–7 (colder climates): Plant in early spring after the danger of frost has passed, or start them indoors in late winter for earlier blooms.
2. Preparing the Corms
Soak the corms in room-temperature water for 3 to 4 hours to help them plump up and begin the growing process.
Do not soak for more than 6 hours, as over-soaking can lead to rot.
Optional: Use a diluted compost tea or liquid seaweed in the soaking water to boost early growth.
3. Site Selection
Light: Choose a location with full sun (at least 6 hours per day).
Soil: Well-drained, loose soil is essential. Amend heavy soils with compost or sand to improve drainage.
4. Planting
Depth: Plant corms about 2 inches deep.
Spacing: Space them 4 to 6 inches apart.
Orientation: Position the corms with the “claws” or fingers pointing downward.
5. Watering
Water thoroughly after planting.
Keep the soil lightly moist during the early growth phase, but avoid water logging.
Once foliage is established, water more regularly, allowing the top inch of soil to dry slightly between waterings.
6. Growth and Maintenance
Ranunculus prefers cool temperatures (ideally 45–60°F).
Fertilize with a balanced flower fertilizer or compost tea once shoots emerge.
Deadhead spent flowers to encourage prolonged blooming.
In hot climates, flowering typically finishes as temperatures rise in late spring or early summer.
7. After Blooming
Once blooming ends and the foliage begins to yellow, reduce watering and allow the plants to go dormant.
In zones with cold winters (below zone 8), dig up the corms after the foliage dies back.
Dry the corms in a well-ventilated space out of direct sun for several days.
Store them in a paper bag or mesh sack in a cool, dry place (around 40–50°F) until the next planting season.