Answer: Now that the flowers are spent, cut down the flowering stems but allow the foliage to yellow on its own before removing it. The leaves transport energy to the bulbs for next year's bloom. Tulips in your gardening region won't rebloom reliably if left in the ground. You can dig them at the end of the season and store before replanting next December or January. Tulips require a chilling period prior to bloom so place them in the refrigerator for 8-10 weeks prior to replanting in the garden.
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