blubs not blooming - Knowledgebase Question

Pittsburgh, Pe
Question by krthickman
June 30, 2010
I planted daffodils and tulips a few years ago. They bloomed beautifully the first year, but for the last two years they have come up, but not bloomed. I am having a similar problem with some summer bulbs I recently planted (irises and gladiolas). What can I do to encourage them to bloom?

Answer from NGA
June 30, 2010


Overcrowding is a common reason for non blooming. If the bulbs are too close together they will compete for moisture and nutrients. You may want to wait until the foliage dies down, then dig and replant your bulbs. About the only other reason for non blooming is if the foliage is cut off before it has a chance to ripen on its own. Wish I had a more concrete answer to share with you.

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