How much and how often should I fertilize my plants?
How much and how often you fertilize your plant should depend on the fertilizer, plant species, soil type, and other factors. For outdoor and garden plants, always begin with a soil test to figure out how much nutrients your plants need.
What do the numbers on a fertilizer bag mean?
The numbers on a fertilizer bag refer to the “big three” macronutrients: nitrogen, phosphorous, and potassium. They represent the percentage of each nutrient — so a 14-14-14 bag of fertilizer contains 14% nitrogen, 14% phosphorous, and 14% potassium. Different plants require different amounts of N-P-K, so double check and make sure you’re giving your garden what it needs to thrive.
Keep in mind that fertilizer isn’t a cure for dying plants, and fertilization can’t make up for poor sunlight or under/overwatering. For more specific fertilizers, check out our tomato fertilizer, tree fertilizer, slow-release fertilizer, and the rest of our garden fertilizers and plant food.