Brrr brrr. Winter is here and you want to take the best care of your lovely adenium. Among all the other species, Adenium Multiflorum and Adenium Swazicum are two of the most cold-hardy adenium. The popular Obesum and Arabicum don’t really take the cold weather very well.
With that said, all of them still need to be watched closely through the cold winter months because the frost might damage them. There are a few key points you should keep in mind. Let's put our gloves on & check them out right below.
1. Overwinter your desert roses
You can overwinter your desert roses outdoors. Placing the adenium in places with absolutely no frost or somewhere bone-dry will help. Try placing them against a wall or under a roof cover like your porch roof. The heat trapped by the wall could help keep the plants warmer. Make sure no rain or water gets into contact with your plants.
It is okay at this point just to let your adenium go dormant. Cold winter nights trigger the dropping of the leaves. You can also force this by cutting off the leaves. If temperatures hit under the 20s F (-6C), you should move your plants indoors or cover them with at least two layers of covers.
If you want to cover your plants, try using a plastic drape and wrap it gently around the plants. Suspend the layers over the plants to keep them warm. Place some stones or bricks on the drape so the wind won't blow them away.
|Warm Plant Cover|
|* Keep plants warm|
|* Cut into any size & length|
2. Water for your adenium during the winter
If you’ve already overwintered your plants with temperatures of 50F (10C) or less, then you should keep the plants absolutely dry until the weather warms up and the plants begin showing signs of growth.
This may be in spring, April or May. Then you can begin watering your plants again. Remember to thoroughly drench the soil to avoid any salt buildups, especially in terracotta pots.
If you have a small plant in a smaller pot, you may need to water it once a month during the dormancy period. Bigger plants don’t really need extra water because their caudex–the water storage part–will have enough for them to survive the cold months.
3. Indoor care for your desert rose
If the outdoor temperatures in your local area are too extreme for the plants, take them indoors before the winter hits. If you do so, make sure the indoor temperatures are from 55F (13C) and above.
If your plants haven’t gone dormant at this time, you may want to force it to do so. By not watering it for some time, the leaves will begin to turn yellow & drop, and the plants will begin to “fall asleep” during the winter months.
4. Post-frost care
If some of the branches are affected by frost, you can prune them back in spring or when the weather gets warmer. When left frozen, the stems might rot and might eventually affect the whole plant.
After winter is over, replant your desert roses into a nice, nutrient-rich adenium soil mix. Give them a comfortable pot to live in and lots of sunlight. Your plants will begin growing and blooming happily again.
Warm & Happy Desert Roses
These are a few key points you should keep in mind when taking care of your adenium in the winter. First, you can overwinter your plants outdoors or indoors. Make sure to give them warm, protective covers with at least two layers.
During the dormancy period, keep your plants bone dry. Excess water with little sunlight might lead to rotting. For smaller plants, we may just need to water them once a month. If your adenium roses branches have been frozen, wait until spring to prune or cut them off.
Here's a simple guide on pruning desert roses:
After pruning, replant your babies into a good, healthy soil mix and give it lots of sunlight. The plants will begin growing again. Hope this brief post was helpful to you. If you have any questions, please let us know. And as always, happy gardening. Be well.
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