When we’re growing our lovely adenium desert rose, sometimes it will grow strong & beautiful, and other times it will get sick and need our help.
We know how it feels when seeing your beautiful babies getting sick & weak. But don't worry. Putting on our Sherlock hat with a magnifying glass in hand, together let's find out how to fix:
- Petals tearing apart
- Leaves curling
- Leaves turning yellow
- Roots getting rotted
- Soft adenium caudex
- Desert roses not blooming
But first, let's see:
1. Petals Tearing Apart
Diagnosis: You can notice this happening when the flower is very young—usually when it is just a bud. The usual desert rose flower will grow up with each of the petals closely attached to each other, forming a nice smooth tube.
In this case, however, you will see one or two petals tearing apart or separating from the other petals. Thus, no tube can be formed even when it grows bigger. On the same branch, you may see one bud with torn-up petals like this and the others still growing strong and healthy.
Quick Fix: One potential idea is the genetic variety of the plant you’re having. This may just be one of nature’s diverse makeups & it's perfectly normal.
From one grower's experience, this may be a slight 'flaw' in the seed-grown adenium. The first flower the plant produces may be torn up. Then the following ones all bloom in good shape. This is one reason why sellers sometimes sell these adenium at a cheaper price. They are good for enjoying the beauty but may not be suitable to get seeds for propagation. If you graft these torn-up flowers on other adenium branches, chances that the next round of flowers will also be torn are high.
Also, check the amount of sunlight you're giving your baby. Desert roses love full sun–the more, the better. Without enough sunlight, leaves & flowers cannot form beautifully.
Check if there may be any deficiencies in the plant's diet. The lack of phosphorous, a macro-nutrient, may affect flower & fruit development. With enough potassium, your flowers will grow stronger & with brighter colors.
|Some Good Phosphate|
|0-46-0 perfect for acid loving plants.|
Be sure, also, to give the adenium more water during the stages when it develops leaves and flowers. Producing those beautiful flowers and foliage requires a good amount of water.
One of the desert roses we have here in Zenyr Garden is currently having the same issue of torn-up petals. We'll try to experiment with some of these ideas and report back. We'd love to hear from you about any tips you have.
2. Leaves Curling Inward At the Tip
Diagnosis: We have checked out some other sources about this issue. Some gardeners have experienced the same thing. From their experience, the curling of the leaves may just be normal growing, and it should not affect the overall health of the desert rose.
If you only see one or two leaves on the plant curling up while the others are still in good shape, it may not be a big deal at all.
From a more technical point of view, the issue with leaves curling up may be the result of a potassium or nitrogen deficiency. Potassium is another macro-nutrient that is responsible for stem and root growth. Nitrogen is good for leaf & branch.
Quick Fix: We may try adding some more potassium and nitrogen by planting in some beans or putting some composted kitchen scraps into the soil. This way, we can then wait and see until the next round when the plant produces leaves and get good results.
3. Leaves Turning Yellow
This is probably one of the most common issues with desert rose. According to some growers, you may be over watering your plant. There’s an easy way to know this.
When you touch the adenium caudex, if it's too soft, then it is lacking water. If the caudex feels just right, then it’s good. If it's too hard, then you may be giving it more water than it needs.
The tree will also tell you by giving you signals. If there’s too much water, you may see some spots popping up on the caudex—just like pimples. The tree has to create exit ways for the water to get out.
Look for these spots:
When you see this, you may need to reduce the amount of water. Or putting the plant somewhere else with more sunlight so it can use up the water it is storing inside. Pick the desert rose out of the soil, cut some parts of it roots, and hang the tree up to let it dry out.
Try touching the leaves. If on a gentle touch, the yellow leaves fall off almost immediately, then they are simply old yellow leaves, and everything is in its normal cycle.
See a normal yellow leaf falling off on a touch right here:
However, if you try touching or pressing down on the leaves a couple of times but they won’t fall off, then those yellow leaves may not be old leaves. Rather, they may be young leaves experiencing some issues with water or diseases.
If you’re under-watering the plant, its caudex or the whole plant may start to shrink. Touching the caudex, you will feel that it’s way too soft. But don't squeeze it too hard because that might damage the tree tissue. Then, you know you need to ramp up the amount of water.
But the question many people ask is:
How can we tell if we're over-watering or under-watering?
From our limited experience, we can begin looking at where the yellowing is starting from. For example, if it starts to yellow from the tip of the leaves in, then this may suggest over-watering. We can have a quick look here:
On the other side of the story, if yellowing starts somewhere around the inner part of the leaf, this may reflect the lack of sunlight or the lack of water. You can see an example here:
From this observation, you may get a clearer idea of what's going on & what actions you can take to help the plants grow stronger again.
If you see the yellowing begins from the tip in, then it may suggest over-watering. If however you see the yellowing starts from the inside of the leaf, then it may be under-watering.
Let's see a little diagram to help you remember this:
See more info here:
4. Roots Getting Rotted
Root rot is an issue that may be related to our yellow leaves. Because the roots may be over watered, they burst out the components inside them and become quite mushy.
To find the rotted part of the roots, you may want to look at the yellow leaf. Then, trace it all the way down to the stem and the nearest roots around that branch.
Use your hands to touch and feel the root system. If it is rotted for only a small part, then cut the part out. And apply some garden lime powder or cinnamon on to heal the scar.
If you see black spots on the roots or they are severely rotted, dig your plant up, cut the rotted roots out, and hang it upside down in some place with shade. Spread some lime powder or paste on for healing. When the scars heal, replant the tree into the soil.
We can use some good lime for the job:
|Good Cheap Garden Lime|
|Protects cuts from water & bacterial infections|
If you don't like using the garden lime powder, here are some other super cheap sealants you can try:
There are some other ways you can apply to get rid of the rot:
- Use a high-pressure garden hose to blow the rotted part out
- Soak the rotted roots in lime solution to kill the harmful bacteria
- Use a spoon to scoop out the rotted part
If you want some more info, check out some more ideas in this easy-to-read post below (with pictures):
5. Soft Adenium Caudex
Soft adenium caudex may be caused by movement shock during shipping, especially for grafted desert roses. It may also be damage from dropping, which causes some bruise. The plants may be dehydrated, under-nourished or under root fungal attack.
To save your babies, you may need to temporarily cut off big energy consumers. By that we mean, cut off those leaves, flowers & small branches. Then, snip off some mushy, black string roots (if any). Dig your plants up & let it rest for 7-21 days. Also, remember no waterings at this point.
After the resting period, place your plants in fresh, cool growing medium for its recovery. Give it some water. This recovery process can take up to 3 months or more depending on the strength of your trees. The caudex will harden up & your trees will bounce back to normal.
6. Desert Roses Not Blooming
The desert roses not blooming yet may be because there's too much nutrients in the soil & your plants are still consuming the good bits to develop their branches. It may not be not the time yet to bloom or produce seeds pods.
If the trees have been fed with some chemical fertilizers, this may weaken its overall health & root system. Which leads to a slower time to flower. You may want to save the plants by cutting down on the bad stuff & re-planting them into a clean medium for a fresh start. Sand works great for this purpose.
Lack of sunlight & pests may also be one of the causes for long blooming time. In this case, let the plants enjoy the sunlight for a bit longer & use some mild insecticides or dish soap to get rid of the pests.
7. Other Leafy Issues
Here are some other issues adenium lovers have also shared:
Weirdly shaped leaves
As you can see, the leaves in this case may be doing what we call, self-eating (autophagy). It shrinks back in size from either one side or on some particular part of the leaf.
A question our inner child or the inquisitive kids may ask is: Where did that part of the leaf go? Our best guess in this case or in any cases where you see some drawing back of some parts of the plant is deficiency.
Something or some nutrients may be lacking somewhere, and our adenium has to cut back on a few parts to move the nutrients to the places where it thinks are essential to sustain the life of the plant.
If we continue with this size, we may not have enough to distribute to everyone. This signals to us, as thoughtful gardeners, that our plants may need some nutrient boost.
If you take a more drastic approach, we can “downsize” the plant. You may defoliate it and prune back where the branches may be too long. Shorter or medium-long branches make it easier for our tree to pump water up and nourish the top-most parts of the plant.
Insect attacked leaves
Our young, fresh adenium leaves are yummy treats for the worms, bugs and comfy homes for other insects to lay eggs. When you see tiny red dots clustering up on the leaves, you know your leaves have been visited by an unwanted visitor called the red spider mite.
Here are their faces:
To ask the visitors to leave, you may want to take a drastic approach and spray some chemicals like supracide, kelthane, or tribon on both sides of the leaves. Be careful though because these chemicals can be highly toxic with side effects appeared only much later.
For a milder solution, try horticultural oils (like neem oil) as a prevention. Onion, garlic, mustard also work. The oil in dish soap helps dissolve the insects' protective coat & messes a bit with their reproduction system. So, it may scare them away.
If you notice only a few caterpillars or little worms on the leaves, you can pick them up by hand. Don't forget to wear gloves if you don't want to be yelled at by your loved ones.
If there are too many of them, you may try spraying the solution every 10-15 days. Just cut the infected leaves off the branch and put them in a garbage bag somewhere far away from your growing area.
When we see the eggs, but the mama is not there, we may wonder: Where did mommy go? One thing we know for sure is she must not go very far. She must be sticking around our area somewhere, but we haven’t spotted her yet.
These things are normal. They come & go with the season. So don't worry too much right now. Speaking of bugs, we have found this creature near our desert rose. Do you think it’s a bug or something? Looks naughty.
Update: We've asked the folks over at Reddit about this creature. From their experience (which is obviously much more than ours), this little guy is a yellow stinky bug with the romantic scientific name Erthesina Fullo. Fortunately, they don't bite or sting (phew). But the specie can be very invasive.
White spot on the leaves
We notice this white round spot on one of the leaves. To be honest with you, we currently don’t know what the causes for this might be. We post it here to share our experience and to see if anyone has any ideas for what might be happening. Please share some tips with us if you have some experience.
Final Checklist for Healthy, Happy Desert Roses
• 100% sunlight
• Water more on flowers & leaves days
• Nitrogen, phosphorous, potassium all good
• Good air flow & drainage
• Check for weird red, white, black dots on both sides of leaves
• Feel the hardness of the caudex & branches
• Give it a nice “hair cut” after flowering to toughen it up
• Check the surrounding for any weird insects or organisms
• Give your love to desert rose every day
We know, we play music to our plants and kiss them “muah muah” every morning. No, we don't. Okay, maybe we do. So much for the love of a resilient, elegant tree.
Don't worry, your desert rose will recover!
Don't be disappointed my friends, everybody has issues with their trees at some point. Just like when we’re raising a kid, there are good desert rose days and bad desert rose days.
During hard times, when the plant can’t seem to be strong enough to fight on its own, it may be calling for our help. As caring and smart gardeners, we’d want to make sure we understand our unique babies enough to help them and not make matters worse.
Very often, what’s showing on the surface might suggest problems stemming from the underneath, that is the root. If we take a more holistic approach to caring for our plants, we can see how the sunlight, the water, the food, the air all affects each other like an orchestra or symphony of nature.
Having an adenium with issues is interesting and offers a unique learning opportunity. It’s the fun of our gardening process, so enjoy! If you have any questions, let us know. Have a beautiful day wherever you are in the world.
Responses to Readers' Questions
Any advice about overwintering them indoors as houseplants??
--> For overwintering desert roses indoors, you might want to try covering them with at least two layers of cover to retain some warmth. Place them against a wall so the heat trapped by the wall can keep the plants warmer. Make sure the indoor temperatures are from 55F (13C) and above.
If your plants haven't gone dormant at this time, you might want to force it by not watering for some time. The leaves will start to turn yellow and drop, and the plants will begin to "fall asleep".
You don't need to water too much at this point–maybe once a month for smaller plants is enough. Keep them bone dry until it warms up or until the plants throw out some new sprouts. Your desert roses will survive the winter & be happy again. I hope this helps!
More info here: Winter care for desert roses
Hi guys.Was wondering how to get rid of the white sticky substance on my Desert Rose.Any advice will help.
--> Can you send us a picture? It's easier to see what might be going on.
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