The Q&A Archives: Fertilizing Growing Medium

Question: Should I add any type of fertilizer to my growing medium of vermiculite, perlite and peat moss before I begin to grow my Burpee seeds? If so, what kind? If not, when do they get fed?

Answer: Newly planted seeds do not need fertilizer. Fertilizer can burn newly emerging tender roots. Once they have germinated and have true leaves you can use a very dilute water soluble fertilizer occasionally and gradually increase the strength. Some gardeners will also use compost tea or a seaweed based solution to provide additional nutrients besides the three basics found in "complete" fertilizers (nitrogen, phosphorus and potassium).

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