Depth and Spacing: Plant the corms 4” apart and 2” deep with the claw side down. How to Plant Ranunculus Growing Ranunculus flowers requires well-drained soil and full sun for best results. ln warmer climates, ranunculus can be planted outdoors in fall with minimal protection. It takes about 90 days after planting to see blooms: Corms planted in fall … The bulbs appear to have claws and these should be facing downwards when planting at a depth of about 3 inches. If you live in a colder area, bulbs … How to Plant your Ranunculus Bulbs. Gardeners in Zones 4-7, plant in the spring for late summer bloom, and plan on treating them as annuals. When finding the right spot to plant your ranunculus, find an area with well-drained soil. These gorgeous bloomers have a rose-like appearance with layers of thin petals, straight stems, and frilly foliage. Hi Linda, you can dig up your ranunculus bulbs and replant them this spring. Soak the tubers and then plant then with the roots or fingers pointed downward at a depth of 1 to 2 inches (2.5-5 cm. from Holland! Set them in a bowl of room … There are several sizes of bulbs available. International supplier of Flower Bulbs The jumbo bulbs will produce the most flowers per plant and they work well in containers. When to plant ranunculus tubers. Ranunculus Growing Notes <