You'd likely have more success focusing on your soil health than individual plant species. Soils inoculated with mycorrhizal fungi can hold 50x as much water an

You'd likely have more success focusing on your soil health than individual plant species. Soils inoculated with mycorrhizal fungi can hold 50x as much water and plants that make these associations are more resistant to drought, frost, diseases, and pests. Plants are able to send signals to each other through these networks to It's easier said than done though. Most people think you can just buy a packet of dried mycorrhizal powder and spread it around but depending on your soil it could actually take a year or two before its in a place where mycorrhizal fungi can really thrive. I'd recommend following the rules of ecological succession from a soil science perspective if you're interested. Jeff Lowenfels series (Teaming with Nutrients, Teaming with Microbes, and Teaming with Fungi) are great if you want something that goes deep into the biology, ecology, and biochemistry of it