forcing tulip bulbs - Knowledgebase Question

quincy, Il
Question by schrader47
December 3, 2009
I have planted some tulip bulbs that started to sprout. Do they have to be in the cold if so for how long?

Answer from NGA
December 3, 2009


Tulips need about 12 weeks of cold temperatures in order to grow and bloom. It isn't unusual for bulbs to begin sprouting early if they experience warm temperatures (they think it's spring). Planting them and keeping them outdoors will suspend the growth and they will rest for the winter. They'll begin to develop roots in about 12 weeks and top growth will resume when the weather warms in early spring. Best wishes with your tulips!

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