Seed Starting - Knowledgebase Question

Name: Robert Kneale
Eugene, OR
Avatar for bomar1224
Question by bomar1224
March 22, 2000
I am starting some flower seeds in those
miniature window sill greenhouses like you can
buy in the garden store. My question is how
long do you leave the clear cover over the
plants after they have sprouted?

Answer from NGA
March 22, 2000
The answer really depends on what seeds you're starting, but a general rule of thumb is to remove the cover as soon as the seeds sprout. Seedlings in overly moist conditions can develop fungal diseases. The covers are designed to help hold in moisture and to prevent cold drafts. Once the seedlings are up and growing they'll need good air circulation. If the seeds require extra protection, you can remove the cover once a day to allow excess moisture to evaporate, or you can prop it up to allow fresh air to enter. But, with most flower and vegetable seedlings, you can completely remove the cover once the seedlings have emerged.

Hope this clarifies things for you!

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