Bulb planting dates - Knowledgebase Question

Santee, Ca
Question by kstonge
February 14, 2009
I live in San Diego, CA. I want to plant tulips, daffodils, Iris from bulbs. When is the best time to plant them.


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Answer from NGA
February 14, 2009

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Most spring blooming bulbs are planted in October, November or by December at the latest. Bulbs appreciate a rich fertile soil, so incorporate 4-6 inches of compost into your soil before planting. Add a phosphorous source, such as bone meal, to the bottom of the planting holes to promote bloom. Continuing adding compost and fertilizer to your bulb bed every year. The packages that bulbs come in will usually provide planting depths, but lacking that, plant about two times the bulb's diameter. Tulips, daffodils, and crocus require chilling for about 4-6 weeks. Others require no chilling. Put the bulbs in the crisper of your refrigerator, but make sure no fruit is in the same compartment. It gives off a gas that encourages the bulbs to grow. Good luck!

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