Q.What do you feed your plant, besides giving them water?
Please help. What other plant food do you give plant. Thank you.

Certified GKH Gardening Expert
Most plants benefit from slow-release fertilizer granules added per product instructions, usually once or twice a season.
You don't specify whether you have ornamentals or vegetables, but a soil test can identify the nutrients your soil may lack. You can do that through your local cooperative extension agent. They also have online and in-office fact sheets with all the information you need to grow annuals, perennials, trees, shrubs and vegetables.
You also can search this website for how-to information on just about any plant. Here is information on fertilizer and organic soil amendments:
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/best-times-to-apply-fertilizer.htm
https://www.gardeningknowhow.com/special/organic/the-importance-of-soil-for-an-organic-garden.htm