Answer: Ranunculus can be planted outdoors 1-2 weeks after your last frost. In your region, plan on transplanting them outdoors about the second week of May. Ranunculus needs 2-3 weeks of prechilling prior to planting. Begin now by sealing in a plastic bag and placing in the refrigerator for 2-3 weeks. Then plant in trays or flats of moistened growing medium. Seeds need to be barely covered with growing medium; roots should be planted 2" deep. Keep your plants in the greenhouse until the soil warms up outdoors, then transplant to a sunny site with well draining soil.
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