Is the long summer watermelon ripe?

Watermelon has various varieties of early maturity and late maturity.

Under normal circumstances, early-maturing watermelons can mature in the southern natural environment from late April to early May; In the Central Plains, it will mature a little later in the middle and late May. General varieties, the Central Plains will not really mature until late June.

Therefore, what the landlord said about ripening watermelon in long summer can be said to be right, but it depends on where it is.