The most common cause of white patches on succulents is powdery mildew, a fungal plant disease. This fungus grows best in environments that are both somewhat warm and dry. Succulents are therefore especially vulnerable to the illness. Other times, white spots may be the result of a plant’s inherent defensive mechanism, an insect infestation, or excessive salt levels.
Why is the white powder on my succulent there?
Conclusion. Powdery mildew, the white, powdery growth on succulents, is brought on by various fungus, depending on the plant it infects. This plant fungus illness first appears as white spots on the leaves of your succulent before spreading to all of the leaves, stalks, and flowers.
Succulent leaves should they be wiped?
Waxy epicuticulum, glaucous
The labels “farina” and “glaucous” (GLAH-cuss) leaves are strange for a typical occurrence in succulents and plants in general. Glaucous leaves have the look of the white. They are referring to the waxy or white, hazy layer that is seen on many succulent leaves and stems. You may have tried to wipe it away and discovered that it was simple to clear, but there was more there than you initially thought. The plant employs this entirely normal and healthy development as defense. It can be worrying since it resembles several other white substances that are seriously harmful, such as whiteflies, mealybugs, and powdery mildew. Let’s examine this more closely to see what it’s all about.
Can you remove mildew that is powdery?
For a fast visual inspection, note that powdery mildew can be scraped off the leaves. Eventually, mildew will cover leaves and entire plants, limiting photosynthesis, plant vigor, and bud quality. These fuzzy mycelium patches release airborne spores that quickly attack nearby plants.
A moldy succulent: can it be revived?
Mold may be cancer for succulents, just as rust is for boats. There are several methods for removing mold from succulents. Some home remedies include mouthwash, neem oil, milk spray, baking soda, water, and dish soap mixtures. The treatments can also be combined with a number of common cooking oils to improve their adhesion on your succulent.
You can buy a commercial fungicide if you do not want to go the do-it-yourself way. Knowing what kind of illness your plant has and carefully reading the product’s safety warnings are two things to do before buying a fungicide.
With cinnamon and milk spray, mold can be avoided. The best approach to avoid illness, though, is to provide your plant the attention it needs.
Can succulents endure direct sunlight?
Due to their drought tolerance and water-storing properties, which enable them to tolerate high heat and very harsh sun exposure, succulents have become well-known. This is true for the majority of succulent plants, however some cannot survive direct sunlight without protection, and if exposed to excessive heat, they may suffer sun damage.  
The best 10 succulents and cacti that will thrive in full sun are listed below. Some of these plants can withstand full sun exposure better than others.
 
Do succulents require sunlight?
Succulents generally require at least 4-6 hours of sunshine each day to thrive. They enjoy being in places that are sunny and bright. Lack of sunshine will cause difficulties in succulents such elongation or etiolation, when the plants extend for more light. Weak stems and low growth are the results of this procedure. Lack of light causes succulents to lose their bright coloring and turn pale or back to a drab green tone. Plants that receive enough sunshine will display their whole spectrum of brilliant hues, showing their genuine beauty.
How frequently should succulents be watered indoors?
Indoor succulent plants probably need to be watered once a week. They require ample time for the soil to dry out in between waterings so that the water may be stored in the leaves. Use the following methods and advice while watering succulent plants inside.
- Use an irrigation system with a little pour spout.
- Fill the succulent plant’s center with water until it is completely submerged.
- Allow water to completely drain out of the pot through the perforations. Make careful to empty any water that seeps through the soil if there is a saucer underneath the plant.
- Since there won’t be enough heat and fresh airflow for the leaves to dry when planted indoors, avoid soaking the leaves to prevent rot from the top down.
- Dry the soil completely in between waterings.