/kloc-how big is the 0/20 cup seedling?

Potted plants with a diameter of 120cm. Cup seedling refers to the seedlings of crops or flowers cultivated in special containers. If the container for cultivating cup seedlings is made of plastic or clay tiles, it should be cultivated and managed in the container. After reaching a certain seedling age, it can be transplanted with the container. 120 cup seedlings refer to potted plants with a diameter of 120cm. The plant belongs to small cup seedlings, and the diameter of large cup seedlings is 150cm.