Growth Time:
Ranunculus typically take about 90 days to mature and boast a long vase life of up to 10 days, making them an excellent choice for your floral arrangements.
Planting Time:
Depending on your climate, plant ranunculus corms in late fall with frost protection when temperatures drop below 25°F. In consistently colder regions, you can also plant them in late winter or early spring. Colder regions will want to store corms somewhere dark and cool until ready to plant.
Pre-Soaking:
Soak corms in cool water for 4–6 hours before planting. Corms will swell slightly and begin to soften.
Pre-Sprouting Indoors:
- Fill a shallow tray or container with moist potting mix.
- Nestle corms into the soil and place in a cool, dark location (ideally around 50°F) for 7–10 days.
- Check for small root development before transplanting outdoors.
Tip: I pre-sprout our ranunculus in gallon sized ziplock bags.
Planting Outdoors:
- Plant corms 1–2 inches deep with the pointy side down.
- Space 6 inches apart in well-draining soil.
Note: Ranunculus grow best in mild climates or with season extension (low tunnel, hoop house, or frost cloth).
Growing Conditions:
Grows best in full sun to part shade. Ranunculus perform best in cool weather and benefit from protection in zones with harsh winters.
Spacing:
Plant 6 inches apart in rows 9–12 inches apart for optimal airflow and bloom production.
