Best Fertilizer for Indoor Houseplants
The best all-around houseplant fertilizer is a balanced liquid formula like Dyna-Gro Foliage Pro (9-3-6) or Jack's Classic (20-20-20) diluted to half strength. Apply every 2-4 weeks during the growing season (March-September). Stop fertilizing in winter. For slow-release convenience, Osmocote (14-14-14) granules feed for 4-6 months. Always water soil before applying fertilizer to prevent root burn.
What You Need to Know
The best all-around houseplant fertilizer is a balanced liquid formula like Dyna-Gro Foliage Pro (9-3-6) or Jack's Classic (20-20-20) diluted to half strength. Apply every 2-4 weeks during the growing season (March-September). Stop fertilizing in winter
For slow-release convenience, Osmocote (14-14-14) granules feed for 4-6 months. Always water soil before applying fertilizer to prevent root burn.
For personalized recommendations based on your specific garden size and fertilizer, use our fertilizer calculator.
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