Here are 15 simple and inexpensive natural fertilizer options to DIY using common household items—plus 5 recipes for homemade plant food.

Homemade fish emulsion is a great way to upcycle fish scraps—or your whole catch—to make a potent fish fertilizer for plants.

Consider seaweed fertilizer a multivitamin for your garden, loaded with micronutrients. Here's how to make and use it in your garden.