zone 13, Phoenix AZ and planted on March 11th... at this point (74 days) the
vines are just 2' long at most, there are blooms on the vines but no fruit.
They get watered twice a week and get direct sunlight from morning to 4PM. I
would expect them to be ripe by 90 days.. What do you think? I still have
time to plant something else there if they aren't going to work out. This is
the second year I've been trying to get them to grow.
I agree with Loki. With a plot that small, any kind of sprawling,
vining plants like melons or pumpkins is the worst possible option.
Definitely tomatoes. Throw in some basil and pole beans.

If you insist on melons, I think others will agree that melons
generally like abundant fertility, in addition to the other
requirements.
DaveH