I have raised beds with about 5" of soil in them, with southern exposure. When I plant anything other than tomatoes or flowers (such as spinach, carrots, beans, etc.), it will grow to about 2"-4" and quit growing. Is it getting too much sun, and if so, how can I correct that problem. Or does my soil need more fertilizer? What ratio of fertilizer do you recommend? I am in Pueblo, CO 81008.

Tomatoes and flowers thrive. Thank you. - Barbara Vincent