How to Grow Hibiscus in the Desert

Dig a planting hole that is at least three to five times as wide as the container and no deeper than the root ball. This planting hole should be where the hibiscus will receive afternoon shade from the hot desert sun, and be protected from hot, dry desert winds. An ideal location is on a south wall under an overhang. It should be planted in soil that is well-drained. If you are using a large container, fill the planter with a good-quality potting mix about half way.

Remove the plant gently from the container and place in the hole or container. Gently tease roots to loosen them. Backfill with native soil if planting in the ground, or with potting soil if planting in a container. Do not fertilize. Water well. For the plant in the ground, add an inch of mulch on top of the soil to reduce evaporation.

Water your new hibiscus daily for a week, then every other day for a week, then twice a week or more during the hottest months. Hibiscus needs regular water. Plants in containers will need to be fed with liquid fertilizer several times during the summer to maintain good health. Plants in the ground do not need fertilizer until they are established. Then feed monthly during warm season. Hibiscus will need protection from hard freezes, below 28 degrees F, so be prepared to cover if these temperatures are predicted.

Prune your hibiscus in the early spring to remove a third of the old wood. If you pinch the stems during the spring and summer, you will have more flowers. If aphids appear, hose the plant off regularly to control.