Why is My Cactus Turning Yellow?
Ever noticed your once vivid green cactus turning yellow? Well, that’s your cactus dropping hints that it might not be feeling its best. No worries though, as we’re about to uncover the reasons behind why our spiky buddies turn yellow and, more importantly, explore potential solutions on how to restore their health.
So, What’s Causing Cacti to Turn Yellow?
Yellowing in cacti is their way of communicating the changes in their health due to the environment, or care routine. The following are some common causes of yellowing:
1. Overwatering
Watering excessively can lead to waterlogged soil, causing cactus roots to suffocate and the plant to exhibit signs of stress. Look out for yellowing at the base of the cactus, which is often accompanied by a softening of the stem.
To address overwatering, lessen the frequency of your watering routine. Allow the soil to dry out between waterings and ensure your pot has adequate drainage to prevent the roots from sitting in stagnant water. Also, opt for a well-draining soil mix such as Spike & Bloom’s High-Drainage Desert Blend soil, which is designed specifically for desert cacti!
2. Underwatering
When a cactus doesn’t receive enough water, it responds by shrinking and displaying signs of dehydration. Yellowing may occur as the plant struggles to maintain its normal functions.
Adjust your watering schedule to provide sufficient moisture. Allow the soil to dry out, but ensure the cactus receives regular hydration to prevent it from becoming excessively dry.
3. Overexposure to Sunlight
Exposure to intense sunlight, especially if sudden, can result in sunburn, causing yellowing or discolored patches on the cactus’s surface, especially on the top part of the cactus.
Contrary to popular believe not all cacti come from environments in which they are in the scorching sun all day long. Even so, keeping cacti in pots, in your home presents a few new challenges for your spiky friends. Always introduce changes slowly to your potted cacti.
Acclimate your cactus gradually to changes in light conditions. Shield it from prolonged exposure to harsh sunlight and provide shade during intense periods to prevent sunburn.
4. Pest Infestation
Common pests such as spider mites, scale insects, or mealybugs can feed on a cactus, leading to yellowing and distorted growth. The presence of visible pests may also be an indicator.
Regularly inspect your cactus for signs of pests. Identify the specific pest causing the issue and treat it with isopropyl alcohol diluted in water or insecticidal soaps, ensuring minimal impact on the cactus.
5. Extremely Cold Temperatures During Winter
Exposing cacti to extremely cold temperatures can lead to yellowing. Cacti also require reduced watering during their dormant periods in the winter.
To protect cacti from the cold, bring them indoors during frost. Additionally, decrease the frequency of watering when they are in their winter dormancy.
Keep an Eye Out for the Changes in your Cacti
Recognizing why your cactus is turning yellow involves being attentive to the watering habits, soil conditions, presence of pests, and even the changes in weather. Each of these can impact your cactus’s health! By tweaking your care routine based on their unique needs and keeping a vigilant eye on the color changes, you’ll ensure your cacti stay happy and healthy.