When all leaves or the whole succulent plant turns into black, it is most likely that the whole plant is rotting from the root to the top. Make sure you have a well draining soil to prevent root rot. It is also important to check the quality of your soil. Solution: Cut back on watering immediately and provide the plant with more light. If wet, the soil will freeze causing damage to the roots. If the plants continue to lack nutrients, the leave will start to discolor and turn yellow. Succulents need a good amount of light, especially as they are naturally adapted to habitats with lots of sun all year long. Succulents, the fleshy-leaved plants often associated with that name, respond to many environmental stressors by ceasing growth and shedding leaves to reduce their energy needs. Succulents need a well draining soil to prevent root rot. In the future, remember to only feed your succulents with a water-soluble fertilizer, like this one we use from Miracle-Gro, which has been diluted to half-strength. Black leaves on succulents are often a sign of overwatering. Instead, give the plant a good drink and hold back on watering until dry. If your plant is shedding leaves at an alarming rate, then it’s usually a sign that there is something wrong with the plant. You can see that the stems of the plants in the bottom left are starting to rot as well. Overwatering. Allow the plant to dry out completely before watering again. If the frost damage is really bad, the entire plant will look rotten. I didn’t throw the stump out and kept it on a shaded shelf and forgot about it. Extreme temperature, extreme light intensity, improper watering and chemical stress can all cause leaves falling off succulents, often quite abruptly. Luckily, this issue is very easy to fix! Make sure you have a well draining soil to prevent root rot. When using any chemical, always follow the package directions and do not apply more than what's recommended. There’s a couple different things that could be causing your succulent to rot, but first I want to talk about how to get it healthy again. But if only a few leaves here or there had suffered from frost damage, your succulent will recover. I have saved plenty of succulents from fatality. You may not need to water as much if you live in a more humid area or if you have your plants indoors. In most cases, you can easily nurse your plant back to health; you just need to identify the cause of the problem to be able to solve it. This Echeveria ‘Black Prince’ has rotted from overwatering. While sun damage is the most common reason for brown leaves, there usually are other causes for leaf discoloration on succulent plants. This will not happen right away and can take years to develop. Is the soil compacted and holding the water? Small baby plants, or newly propagated plants are more susceptible to sunburn than mature plants. Small bugs, like spider mites, can be recognized by their webbing on leaves and stems. These are signs that the plant is rotting from the roots up due to overwatering. I have saved plants that seemed doomed just from a single leaf, or a broken stem. I have a few of these babies growing in different pots. You’ve probably heard from numerous sources that succulent plants are hardy and easy to care for and yet you find yourself encountering problems with your succulents. Shocking a succulent's system can also cause its leaves to drop. Keep in mind that even a mature plant that has been acclimated to full sun can still get sunburned during an intense heatwave. Some have mixed colors though. As regards the Gollum Jade (Crassula Horn Tree) – over 4 of my 5-6 leaves set up for propagation shot out baby plant within two weeks, so I would say they are not hard to propagate as such. If you start to notice soft black spots on your plant’s leaves or stem, the over-watering is getting severe, and it may be difficult to save your succulent. The succulents have the best chance of survival when kept bone dry. The yellow coloration on the leaves is a dead giveaway, though, as are signs of root rot when you lift the plant out of its pot. Use a horticultural soap labeled for use on succulents or wipe leaves and stems with a cotton ball soaked in a 1 % solution of rubbing alcohol and water. Therefore, always use pots with drainage holes when growing succulents. If you apply too much fertilizer on your succulent, it could actually stunt its growth instead of promoting it. Its leaves turn dark when the plant is exposed to direct sunlight. It’s not that hard to tell when your succulent is in distress.