We hope it’s underwatering because an overwatered ZZ plant is a bigger problem. It is essential to detect which of the two extremes has caused damage. If it’s wet, delay watering because you’re dealing with an overwatered ZZ plant. To be sure, inspect the soil if it’s dry to touch, your eternity plant is lacking water. If you think that a lack of water is causing the blackening, double check because the signs of underwatering are very similar to those of overwatering. Other signs of an underwatered ZZ plant include: In case of underwatering, the black or brown blotches will most likely appear near leaf edges or tips. But that doesn’t mean the plant will grow healthily without water.Īlthough it may be hard to believe, underwatering can be almost as dangerous as overwatering! UnderwateringĬompared to other tropical plants, the ZZ plant isn’t a heavy drinker. These infections lead to root or stem rot, which can kill your plant. Soggy soil not only causes oxygen restriction, but also creates an ideal environment for diseases caused by fungus. The leaves will develop black blotches if they don’t receive enough nutrients. As a result, suffocated roots can’t send nutrients to the other parts of the ZZ plant. Put simply, excess water around the roots prevents them from taking in oxygen. It’s because photosynthesis has a positive outcome if the plant receives enough oxygen. Plants take in carbon dioxide, but the question is: why do they need oxygen? For the ZZ plant, overly wet soil means a restriction of the oxygen essential for healthy root growth. When your Zanzibar gem receives too much water, the soil becomes soggy. The worst enemy of ZZ plants is overwatering. OverwateringĪlthough it may seem like the ZZ plant is impossible to kill, trust me, that’s not the case. This is a serious condition, and if left untreated for an extended period the leaves will die off and the entire plant will be affected.īe very careful as this may be fatal for your plant. On the other hand, if the blotches spread and entire leaves start turning black or brown, your plant has been exposed to direct light for too long. However, a few spots on the leaves won’t cause much damage to the overall health of the ZZ plant. You will first notice scorching, followed by black blotches. This means that it won’t take much time for them to react to direct sunlight, even if they are not exposed for an extended period. This means that they are not exposed to direct sunlight.īear in mind that the leaves of this plant are delicate and light-sensitive. The ZZ plant is tropical, and when it grows in its native habitat the leaves are protected by the rainforest canopy. Let’s get into more detail! Direct Sunlight If you notice this kind of leaf discoloration, you should check your watering and fertilizing schedules, as well as humidity and light levels. So, if you notice black blotches on ZZ plant leaves, here are the possible causes: Black Spots On Leaves Blackness and green leaves are not a good combination. Whenever you notice anything black on your plants, you should act immediately. 3 Wrapping Up Black Spots On ZZ Plant: Causes
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