How often should I fertilize houseplants?

FAQ
Question: 

How often should I fertilize houseplants?

Answer: 

Fertilize houseplants when actively growing in spring and summer.  Use a complete fertilizer that contains nitrogen, phosphorus, and potassium.  Houseplant fertilizers are available in liquid, crystalline, granular, spike, and tablet forms.  Frequency of application depends upon the product and varies from every 2 weeks to once every 3 to 4 months.  Carefully read and follow label directions. 

Do not fertilize houseplants during the winter months.  Most houseplants are not actively growing in winter and don’t need fertilization. 

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