Q.How Often Should I Fertilize My Plants?
Like coffee grounds, epsom salt, tea and oat fertilizer, and banana peel,and more
Certified GKH Gardening Expert
Typically, this is done in spring. Now would be a time to start adding these if they are well composted. Though you can add them uncomposted, you will likely be battling fungi and bacteria later. Before you apply the composted materials, make sure that the soil needs the fertilizer. Overfeeding is just a bad as underfeeding. Testing your soil is best. Generally, though, you can apply one or two times per year. Spring, and early fall.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/epsom-salt-gardening.htm
https://www.gardeningknowhow.com/composting/ingredients/coffee-grounds-gardening.htm
https://www.gardeningknowhow.com/composting/ingredients/banana-peels-compost.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/all-about-fertilizer
