Cat litter can be used to grow flowers, but whether it is suitable depends on the composition of the cat litter. Cat litter is generally made from a mixture of clay, quartz sand, wood chips, paper pulp and other substances. These ingredients themselves will not be toxic to flower crops. However, some cat litter may have added fragrances and deodorants, chemicals that may be harmful to flowers.

If the cat litter is pulped into small particles, it can usually be used to grow flowers. But if it is made of silica gel cat litter, it is not suitable for growing flowers. In addition, the use of used cat litter is not recommended because it has a strong smell and the cat's excrement generates heat, which can easily cause burns to the roots of flowers.

When using cat litter to grow flowers, it is recommended to mix it with the soil to improve the soil's air permeability and drainage, which is beneficial to the growth of flowers.