Ranunculus Flower Zone 5. 25052020 In these regions plant in early spring a week or two before the typical last frost. I knew I had to grow them.
Plant Hardiness Zone MapThe zones in the US. Ranunculus are cool season flowers that grow best in spring-like temperatures of about 55F. Those with colder winters can plant in late winterearly spring once the threat of hard frosts is over.
The clawlike bulbs more correctly tubers come in four grades or sizes.
Ranunculus normally start to flower around 90 days after planting therefore your bulbs wouldnt begin to flower until May. Soak the tubers and then plant then with the roots or fingers pointed downward at a depth of 1 to 2 inches 25-5 cm depending on the size of the bulbs. 08032021 Grown as a cool-season perennial in USDA zones 8 through 10 or 11 the Persian buttercup ranunculus Ranunculus asiaticus blooms in the spring and goes dormant in the summer according to the. I planted some Ranunculus tubers in spring in containers since I live in zone 5b-6a depending on the site I check in I got few flowers from the almost 200 tubers I planted so I assume the tubers I purchased were small so I left them in the containers to gather some food and sun light.