It may be too late this year to start doing this, but it’s something to keep in mind until next season. I buy a watermelon every week in the summer for about two months that’s about 9 watermelons that’s $45 not a lot of money to save really. But I remember we used to grow watermelons when I was a little kid, they would be laying there on the floor, we will pick a ripe one, cut a slice, and eat the most delicious watermelon ever. I don’t know what makes homegrown food taste better than the ones you buy.
If you are interested in growing your own, the link below will show you how you can do that in containers.