Desert rose (Adenium) care in Dubai: sun, water, pots and flowering

Desert rose (Adenium) is a succulent that stores water in its swollen base, so it copes with Dubai heat but not with wet soil. Give it full sun, a very gritty mix and infrequent deep watering. Rot from overwatering is the main way people lose them.

Key takeaways

• Full sun brings flowers. Low light gives stretched, weak growth.
• Water only when the soil is dry right through, and much less in winter.
• Use a gritty cactus-style mix and a pot with drainage holes.
• Leaf drop in cooler months is normal.
• Soft, dark or squishy base means rot. Act quickly.

How much sun does a desert rose need?

As much as possible. Aim for six hours or more of direct sun. A bright terrace or balcony in Dubai suits it. The plant flowers best under strong light, and a shaded spot gives weak, leggy growth. If you are moving a plant from a shaded nursery area, bring it into full sun gradually so the leaves don't scorch.

How often should you water a desert rose in Dubai?

Less often than you think. In summer, when the plant is growing and flowering, water deeply and let the soil dry out fully before the next watering. In hot weather that might be every few days for a small pot, but check the soil first. Never leave the pot sitting in a saucer of water.

In winter, the plant slows down and often drops leaves. Water only lightly and rarely, for example once every couple of weeks or less, depending on conditions. Constantly wet soil in cool weather is what rots the base.

What soil does a desert rose need?

A very free-draining mix. Use a cactus or succulent mix and add extra grit, perlite or coarse sand. Sandy UAE soil drains well, but improve it with some grit and a little compost if you plant in the ground. Drainage holes are essential in pots, with coarse material at the base. Rinse the soil through now and then with plain water to wash out salts.

How do you repot a desert rose on a terrace?

Repot every two years or so in spring, into a pot just one size up. A shallow, wide pot shows off the swollen base (caudex). Let the plant sit dry for a day or two after taking it out, shake off old soil gently, check for rot, and repot into dry gritty mix. Wait a few days before the first watering.

You can see the Desert Rose in our outdoor plants range.

How and when should you prune a desert rose?

Prune in spring, before the main growth. Cut back long stems to a few centimetres above a node to build a more branched shape. Use clean tools and wear gloves and eye protection. Let cut surfaces dry before watering.

Why is my desert rose not flowering?

• Not enough sun: the most common reason.
• Overwatering: leaves grow, flowers do not.
• Too much nitrogen: leafy growth only. Use a fertiliser made for flowering plants, at half strength, in the growing season.
• Pot too large: the plant puts energy into roots.
• Young plant: it may take a season or two.

Why are the leaves yellow or dropping?

• Overwatering: yellow leaves and a soft base.
• Winter rest: leaf drop in cool months is normal.
• Underwatering: very dry soil in peak summer can cause drop in small pots.
• Cold nights: leaves can yellow and fall after a sudden dip.
• Spider mites: dry, hot weather. Look for fine webbing under the leaves and rinse.
• Mealybugs and aphids: sticky leaves and white patches. Wipe off with a soapy cloth and repeat.

What do you do about root or stem rot?

If the base is soft, dark or smells, stop watering. Remove the plant from the pot, cut away all soft tissue with a clean blade, let it dry for several days in the shade, and repot in fresh dry gritty mix. Severe rot may not be recoverable.

How big does a desert rose get?

Usually a compact plant, from a small table-size specimen to a shrub of a metre or more over time. Container growing keeps it compact.

If you would prefer a regular visit to look after your plants, see garden maintenance.

Reviewed by Hamza, site supervisor at Green Beetle.