When the succulent plant changes the basin, its root will be damaged, so the root can not absorb any water, nutrients and other energy from the soil during the basin. At this time, succulent will draw water and nutrients from the mature old leaves closest to the soil at the bottom, and grow new roots again, and the mature old leaves will wither.
One is because the mature old leaves are at the bottom, near the soil surface.
The other is that they can't photosynthesize with the leaves above.
Third, they are also gradually aging, there is no other need to breed, so succulent plants will take the initiative to select them for sacrifice.
In fact, if your friends often observe the succulent plants during the service period, you will find that there are always several leaves at the bottom of each pot that are slowly drying out, and the water is disappearing a little bit. At this time, many friends will think that it is caused by no watering, but in fact, it is at the expense of the ego, to complete the big me. So friends don't have to be sincere
During the transplantation, there is no root treatment, and there is no disease and pest, which is equivalent to that when the basin is changed, the whole soil is moved, in this case, the water can be watered. Because its root is not damaged, it can also absorb water and nutrients in the soil.