Answer: Tulips, like all bulbs, are replenished through their foliage. For best results, deadhead the spent blossoms but allow the foliage to grow and then yellow and dry up naturally before you remove it. With the exception of the small cottage garden, rock garden and species tulips, most tulip varieties do not perform quite as well in subsequent years as they did the first year. For this reason, some gardeners opt to treat them like annuals and simply remove them after they bloom.
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