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- Cacti Are Exposed to Cold Temperatures. Cacti are not designed to withstand cold temperatures. When cacti live in an area where the temperature drops below 50 Fahrenheit, they can turn white because of exposure to frost or ice crystals forming on their needles and other parts.
- Cactus Is Under Too Much Sun Exposure. If cacti are placed in a location with too much direct sunlight, they will start to turn white and look crispy.
- Cactus Has Been in a Place That’s Not Well Ventilated or Gets Moldy. When a cactus is in an area without good ventilation, it can start to turn white.
- Cactus Is Overfed. The cactus may be turning white because it is being overfed with fertilizer. Cacti need to be fertilized very sparingly. They should only be fertilized once a year.
- Pest infestation. Pests aren’t such a problem on cactus plants, but when present, they tend to hide in tight spots where locating them can be difficult.
- Severe sunburn. Cactus are known to thrive in intense sunlight. However, plants from a greenhouse or shade might not do well in long hours of direct sunlight.
- Frost damage. Succulents aren’t good at handling frost or subzero temperatures. A cactus will likely turn white when temperatures drop below 20 degrees Fahrenheit.
- Root rot. Cactus root rot is a serious condition commonly caused by overwatering or poorly draining soil. The cactus turning white can be a sign of root rot.
- Move Your Cactus Indoors
- Treatsunburn
- Improve Airflow For The Cactus
- Change The Overfertilized Poting Mix
- Water Your Plant on A Need Basis
- Get Rid of The Cactus Moth
- Treat The Cactus Rot
If the succulent is turning white due to the freezing cold of winter, move it to a warmer room that has some radiated heat. Now that your cactus has run out of coping mechanisms for freezing temperatures resulting in frost damage, give it time to recover after moving it back indoors. A warmer room will help the plant to come back to life. You can r...
After realizing that your cactus turns pale due to sunburn, consider moving it to an area away from direct sunlight. The place should have a shade-like structure. you can also spray some water on its leaves to compensate for the water loss. Avoid adding fertilizers to the soil as this may worsen or be a risk factor for sunburn.
If your plant has molds growing on its leaves, spines, or needles making it turn white, now is the right time to take in outdoors for fresh air. Give it some water and cut off any moldy parts. If the succulent doesn’t have any molds on its surface, there is no need for pruning it. once it turns green again, place the pot in an area with good airflo...
Reducing the amount of fertilizer you give to your plant can be challenging. it’s easy to miscalculate how much fertilizer needs to be removed. Changing the potting mix to cactus soil mix is the most effective solution you can consider for a cactus plant turning white. After replanting the succulent a new potting mix, prune away the top parts to pr...
A cactus doesn’t need frequent watering because it’s a drought-resistant succulent. It can store water on its leaves and stems for up to three weeks. During summer, water the cactus 2-3 times a month. The type of container and soil mix can also affect the watering frequency of cactus plants. For example, plastic and glass containers are nonporous a...
Grow your cactus away from plants that attract white moths to prevent if from turning white from their attacks. However, if you notice the succulent is already infested, killing the moth with an insecticide and applying proper care can get rid of the whitish stuff on your cactus. Here are two methods of getting rid of white stuff caused by cactus m...
When root rot is the reason why your cactus is turning white, start fixing it by cutting out all the damaged roots. Wear gloves for personal protection as the plant’s spines may poke you. Clean the cutting tool with alcohol or dilute hydrogen peroxide to kill all the fungus and prevent it from spreading to healthy parts of the succulent. Repot the ...
Aug 12, 2023 · Step 1: Figure out why your Cactus is turning white. To fix a white cactus, it is crucial to figure out why it is turning white in the first place. There can be several reasons for a cactus to turn white, including overexposure to sunlight, fungal infection, pest infestation, or simply aging.
Your cactus can turn white due to etiolation. This occurs when cacti are grown in weak light and high temperatures and receive excessive watering. Also, it can be the result of infestations by pests like mealybugs, which leave a cottony, white residue on the plant’s surface. Additionally, fungal infections, such as powdery mildew, can also ...
Apr 13, 2022 · Frostburn is another common reason for cacti turning white. This is especially prevalent for outdoor cacti. If the temperature drops suddenly or there is a frost, it can damage the plant. The frost will cause the water in the plant cells to freeze and expand, which can rupture the cell walls. When this happens, the tissue of the plant will turn ...
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Oct 13, 2022 · The possible reasons why your cactus is turning white are: #1. Cacti exposed to cold. #2. Sunburned cacti. #3. Cacti that have too little air ventilation. #4. Overfertilized cactus.
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