Answer: Perhaps the confusion comes because ranunculus are tender and may have to be dug and replanted to protect them from hard frost. So, in zones 4 - 7 plant in spring, harvest in fall; in zone 8 they're hardy with a mulch (no digging necessary); and zones 9 & 10 they're completely hardy and do not need to be dug and replanted each season. Ranunculus are actually summer bloomers although they may flower in late spring. You can transplant them into the garden in full sun if the soil is moist, or part shade if the soil's on the dry side. If left in the ground the "claws" (bulbs) will multiply and you can dig and divide them after the foliage dies down in the autumn. Hope this answers your question! If you're selling these plants, it might be kinder to tell your customers to treat them as annuals - enjoy the flowers this summer but pull them out at the end of the season. That way, you'll avoid disappointment if someone fails to dig them up and overwinter them in a cool place.
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