Q.Root structure of Yaupon Holly
Hello,
I am looking at replacing some ficus trees near a swimming pool. I was thinking of the Yaupon Holly grown as a single trunk ball shaped tree. I live in Anaheim, CA. The ficus trees have to come out because after 20+ years the root structure is too close to the pool. Will the Yaupon Holly work?
Thank you.

Certified GKH Gardening Expert
This choice will be much better than the ficus. There will be, virtually, no chance of the roots becoming invasive enough to cause damage to structures, although removing these shrubs after some time will prove difficult. Once they are established, they will stay in an area, even once pulled up.
This article will give you more information on the care of these shrubs: https://www.gardeningknowhow.com/ornamental/shrubs/holly/growing-yaupon-holly.htm