What to Do When a Kalanchoe's Roots Turn Black? Causes and Solutions

I. Replanting

1. When we find that its roots have turned black, the first thing we need to do is deal with the blackened parts, cut them off, and then replant it as a cutting. Of course, we can also directly choose the healthier stems from above to take cuttings. When cutting, we must be careful not to hesitate; we must cut everything off, because the blackened roots not only fail to absorb nutrients but actually consume them.

2. Then we can apply some carbendazim to the stem, so that bacteria will not infect it.

3. After that, move it to a shady place, and a few hours later we can replant it back into the soil. If it still has flower buds at this time, we should remove the buds, because they cause a loss of nutrients, but the leaves should still be kept, because photosynthesis can promote root growth.

II. Water Culture

1. Water culture is also an option. We can take it out of the pot and remove all the blackened roots.

2. After that, we need to disinfect the cut with a fungicide, then put it in a shady place to dry. If almost no roots are left after this, it also needs to be soaked in rooting water.

3. Once it has dried, we can put it into a container filled with mineral water. Do not use too much water; just enough to reach 1/3 of the roots. Finally, place it in a ventilated, bright spot, but be careful that the light is not too strong, otherwise it may get sunburned.

III. Other Points

Ventilation and light are also essential for it. Only when these conditions are met will its roots grow perfectly; otherwise, it may be difficult for it to recover.