Repotting a Desert Rose: When and How to Do It Right

Debbie received a desert rose (Adenium obesum) three months ago. The plant has become loose in its 5-inch pot, and she wonders if it's time to repot. The plant sits where it gets only 1–3 hours of direct sun daily, and leaves drop but quickly regrow.

Expert Answer: The plant doesn't appear to need repotting yet, but it does need sandier soil and much more sunlight. If you decide to repot, choose a 6-inch pot with a drainage hole and use cactus soil. Cover the drainage hole with a paper towel, add a layer of soil, then gently remove the plant from its old pot, shaking off as much old soil as possible. Place it at the same depth—or slightly higher to expose more of the swollen caudex. Fill around the roots with cactus soil, using a chopstick to settle soil between roots without damage. Water lightly and keep the soil level just below the previous line.

Crucially, desert roses need at least 8 hours of direct sun daily to bloom well. When night temperatures stay above 50°F, move the plant outdoors into full sun. For inspiration, search desert rose blooms.

Pruning is rarely needed; only trim a single tall branch back to match the others, cutting at an angle. Be aware that pruned branches take about two years to regrow a flowering tip.