Things they try to get you to buy...

The things that people will try to get you to buy!!!

A book telling you how to grow square watermelons, pumpkins, squash, tomatoes or just about any other fruit.....

If you want to grow one it's simple, and no it's not from square seeds.

Buy 'Grow yor own Square Watermelon' for $19-95 (US), or simply.....

Get an understanding of how large the fruit of the species will grow, then construct a square open ended frame out of marine 3 ply, {or something weatherproof like that}. Just smaller than the finished ripe size of the fruit. Bevelling the edges of the sides does help hold the finished box together, but is not totally necessary. Strap, screw or nail it into a box shape. ( you could even make a triangle, hexagonal or even octagonal shape).

Then position the frame over the growing fruit, well before it reaches it's optimum size, and let it grow into and be moulded by the shape of the box. And thats all there is to it.

You could even use just about anything from packaging cylinders, through to cookie moulds to force shape any growing fruit, into any shape you want. limited only by your imagination. And the ability of being able to remove the moulding shape from around the fully grown fruit without damage to the fruit.