FoxFarm Bush Doctor Wholly Mackerel is a fish-based fertilizer that supplies readily available nutrition to your plants and encourages vigorous growth. Its 3-1-0 NPK ratio encourages growth above the soil surface while offering nutrition to the root system as well. We recommend that this fertilizer be used on plants appreciated for foliage, such as houseplants.

For best results, mix one tablespoon per gallon of fresh water and thoroughly drench the soil every other week.