Fertilizer for Houseplants: When, What, and How Much

Plant Food: Only During Active Growth, Half Strength

Fertilize only when plants are actively growing. Low-light/slow growers need very little. Too much burns roots, discolors leaves, stunts growth. Most prefer water-soluble at ½ label strength. No fertilizer for blooming or dormant plants. Balanced N-P-K (equal parts) for general use. N = leaves/stems; P & K = roots/flowers. Trace minerals included. Salts build up if unused—flush periodically.