How far apart from tomatoe plants is it safe to plant watermelon starts?

Answer 1

plant them far enough away so the tomato plants don't choke them out (block sunlight from getting to the watermelon plants)

Answer 2

Watermelon: bush-type 1/sqft; vine-type 1/2sqft - both kinds along trellis
Tomatoes: bush-type: 4/4sqft (see special grid); vine-type 1/sqft (in row of 4 on trellis)
A good way to grow even heavy fruit like watermelon is on a trellis. They take less ground area and produce more with less insect damage. Growing them vertically gets more light to the leaves. Give the vines lots of support by tying them to the trellis every few inches. The trellis needs to support the weight of the vines & fruit so it must be very solid. If you choose a large fruiting melon use a sling under the fruit. Cut an old T-shirt or use panty-hose that supports the fruit and is itself tied to a firmly supported trellis. A stretchy fabric will allow growth of the fruit while firmly holding it.
I then grow lettuce in the melon shade to increase its season til bolting.
"If the shade is not too dense, sunscald damage to tomatoes and chiles will be reduced. Blossom end rot may also be reduced as the temperature and wind desiccation under the taller plants will be reduced."

Answer 3

For real? 15 feet at least! Once those water melons take off they'll run and run and run and you won't be able to get to your tomatoes. I planted tomatoes and pumkins once, 10 feet apart, couldn't get to the "maters". And water melons are a lot worse.

Answer 4

i would say the closest to get would be about 2 ft farther would be better and since watermelon vine you can direct them as to where you want them to go later as they grow.