I am usually on the Fruit and Orchards forum but I thought it best to post here for this question.

I am putting in a flower bed with iris, daylilies, peonies, hibiscus, hydrangeas, etc. I have purchased two fruiting cacti and want to put them within the flower bed simply because all the rest of my sunny locations are filled with fruiting trees, bushes, or vines.

I have amended the clay soil with high porosity coco coir mix from a marijuana grow facility here in Denver (the one perk of legalized marijuana). The coco coir mix also has lightweight rocks that look like they are for hydroponics.

Will this mixture be okay to plant my cacti in, and should I add sand, a higher percentage of the rocks, or nothing at all? Should I dig a place to plant them in and not incorporate the native clay soil?

How large of an area should I prepare for these cacti?

This post was edited by milehighgirl on Sun, Sep 14, 14 at 17:32