In fact, it is very different: to sum up the appearance of leaves: the leaves of cauliflower seedlings are oval, with sharp edges and long petioles! Actually, this cauliflower is very full. Yes; Cabbage seedling: It's also oval but not so round. Look at its picture. Its leaves are a little curved below, not very full. In fact, if you look at their photos carefully, you will know that the difference I said is still very big. Imagine that the fruit of cauliflower is full, and so are the leaves. Cabbage will be wrapped when it grows up, and the degree of leaves must be curved!

Cabbage seedlings