Early Growing Bulbs - Knowledgebase Question

San Jose, CA
Question by kimnlenny
October 30, 1999
Last spring my daffodils and china whites grew but did not bloom. I did not take them out and replant them again this fall. It is now October 31st and they are beginning to grow again. It has only rained once in San Jose this fall and the weather has been in the 80's often. What is happening and what can I do to see their pretty faces around Easter?


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Answer from NGA
October 30, 1999

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A number of things can cause this. 1)bulbs could be buried too deeply. If your bulbs bloomed in previous years, this probably is not your problem. 2)ground is too wet. Again, if they have bloomed in previous years, probably not the problem. Three, bulbs are "spent" - just plain 'ole worn out, can happen after 2-7 yrs. dependent upon variety. Beds of bulbs can appear to last for decades, but that is because some varieties reproduce themselves with bulblets. I suspect one of the last two reasons to be your problem. The fourth reason is removing the foliage prematurely. After bloom, bulb foliage must be left intact until it withers and browns. It must not be removed until it dies down naturally, no matter how ugly it gets. Removing the foliage while it is still green compromises the bulbs ability to complete the photosynthetic process and this can cause the bulb to suffer greatly. The fifth reason is applying fertilizer which is too high in nitrogen (such as lawn fertilizers). This can result in a lot of green, vegetative growth, but no foliage. Keep lawn fertilizers and other fertilizers which are high in nitrogen away from blooming perennials, bulbs, and shrubs. Fertilize your bulbs with a mix designed for bulbs, like "Bulb Booster".

Hope this answers your question and provides some possibilities for the reluctance of your bulbs to bloom.


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