Curled leaves on a clematis are usually a sign that your plant has been at least a little stressed.
Now, there can be several reasons why the plant has been stressed, either by nature itself or because the care has not been ideal.
Usually it will be a mixture of the two, as nature and carelessness can go hand in hand.
So, if you’ve noticed curled leaves on a clematis, it’s time to find out the exact reason so you can fix the problem that caused it.
Here are the main reasons.
harmful
Over time, when growing a clematis, you can encounter various pests that can unfortunately snag the plant and cause all kinds of damage to the aesthetics and longevity of the plant.
Some pests you may encounter include thrips, scale insects, spider mites, and aphids.
These pests can specifically cause clematis leaves to curl when they feed on the plant’s sap, leading to desiccation, nutrient loss, and leaf curling in response.
Now, there are many parasites that you cannot physically see, so you have to rely on symptoms to determine whether or not you have a parasite problem.
Some of the symptoms of a pest infestation are as follows.
- rolled up leaves
- hanging leaves
- White or pale leaves
- yellow leaves
- Holes in the leaves
- Webbing (indicates spider mite)
- Clusters of white or black spots on leaves or stems (usually the pests themselves)
- sticky sheets
Solution
One of the best ways I have found to get rid of this particular annoying pest is to use an organic fungicide which is also an insecticide known as neem oil.
With this material, all you have to do is spray it on both sides of the leaves and on the ground if necessary to get rid of the insects.
After a spray or two you should notice most, if not all, of them are gone and the product is helping to keep them from coming back.
You just have to make sure to use it alone. White plants are in the shade until they dry out, so the leaves don’t burn.
I recommend this neem oil if you are looking for it
Another way to remove pests from your clematis is to use a cotton swab dipped in a little rubbing alcohol.
It also works great if you have the time or patience to remove the bugs by hand or if there aren’t too many on the plant.
Just be sure to wear gardening gloves before handling your clematis.
Submarine
Although you may tend to overwater the plants, which is fine, clematis are not drought tolerant plants and require consistently moist soil, so regular watering is a must.
If your clematis has not been watered regularly enough, the leaves will curl up in response to seeking whatever moisture it can find.
Of course, this is more common when growing outdoors, as rainfall can be unpredictable depending on where you live and if that’s all you depend on for water.
Solution
If you tend to rely on rain, you may need to consider replenishing your own water during dry spells of rain to avoid drought.
If you always water yourself, you will need to water more often, say once a week or every two weeks.
It really depends on how quickly the soil dries out, as this is the most important indicator of when to water.
Once the first inch of soil is dry, go ahead and give Clematis something to drink.
That’s all you really need to know, it’s pretty simple, right?
there is not enough light
Clematis thrive in full sun for most of the day, so if they don’t provide enough light or grow in very little light, they can definitely cause problems.
In fact, one of those problems is curled leaves.
Low light not only causes the leaves to curl, but they can also stretch if left on long enough.
Slightly curled leaves can be corrected or restored, but spreading leaves usually cannot.
So it’s not only important that your clematis gets plenty of sun (at least 4 hours a day), the plant should also get plenty of indirect light if full sun isn’t always an option.
You don’t want to grow it in near darkness, as that will cause chlorosis, pallor, and yellowing, and the leaves of the clematis will curl accordingly.
Solution
If you are growing clematis outdoors, find a location that gets plenty of bright light for most of the day (ideally full sun for most of the day).
Even if the location is quite shady, it is still better than placing it in a dimly lit area.
If you’re growing indoors near a window, you may need to move it to another side of the house if it doesn’t seem like enough light is entering your current window.
If all else fails indoors, consider using a light growing plant.
This one is also quite affordable.
thermal stress
While Clematis plants prefer full sun, you should always be careful that too much heat does not negatively affect it.
Temperatures above the mid-80s can start to stress a clematis, and the heat can scorch the leaves if neglected in this type of heat.
Heat stress is also one of the main causes of red leaves on clematis.
When a clematis is sunburned, you’ll know by the discoloration of the leaves, such as turning red or brown before the leaves turn black and drop off.
The leaves will start to curl early to try to retain the remaining moisture, so if you notice this, it’s time to steer clear of the heat.
Solution
When the temperature begins to rise to uncomfortable levels, like going indoors to cool off, bring your clematis inside if possible.
If that’s not an option, you can move the plant to a much more shady spot or try a shade cloth for now.
If you are having this problem indoors, the plant may be too close to a window and need to move back a few feet.
Not much to say, just avoid the heat.
conclusion
These are really the main issues that cause curled sheets, so I’m sure you can identify the source and fix it quite easily.
That’s it and as always, have fun gardening and enjoy the overall experience.