What happened to the rotting root of the rose?

First, the basin soil is impervious.

Reason: if the soil permeability is not good, it will cause the basin soil humid and muggy, very easy to breed bacteria, and very easy to produce stagnant water, resulting in rotting roots.

Solution: replace it with well-breathable soil.

Second, overwatering

Reason: the rose is afraid of being wet, so if the amount of water is too large, it will be prone to stagnant water, which will cause rotting roots.

Solution: to control the amount of water, wait for the soil to dry before watering, do not water too much, as long as keep the soil surface moist and no stagnant water.

Third, apply a large amount of fertilizer

Reason: roses like fertilizer, but if too much fertilizer will also cause fertilizer damage, but also burn its roots, and then rot.

Solution: the amount of fertilizer application must be reduced, and the frequency of fertilization should also be appropriately reduced. Fertilize once before and after blooming, and do not fertilize as much as possible at other times.

4. there are diseases and insect pests

Reason: bacteria will multiply in large numbers in a humid environment, and when bacteria increase, there will be a series of diseases and insect pests, which will harm the roots of roses and cause root rot.

Solution: find that diseases and pests should be cleared in time, with chemical spraying to prevent, usually appropriate application of phosphorus and potassium fertilizer to improve the disease resistance of Rosa. The rotting roots should be cut off and disinfected to avoid secondary infection.