By together, do you mean side by side with just a couple of feet between them? Also, what sorts of each? Vining or bush cucumber plants? Indeterminate or determinate tomatoes? I can foresee a battle for space and sunlight if vining cucumbers (which I assume will be grown on a trellis) are grown too close to indeterminate tomatoes (which I also assume would be caged or trellised).

I really didn't think about that!! DH and I were talking at the breakfast and was wondering about it! the cukes will probably be Market More. They did really well last yr. If you remember I planted them late my others got mildew so bad. Tomatoes either C. Purple and black Krim, Early girl.
But not sure yet. I have seeds of each of the tomatoes started but I've never had luck with seeds so we will see.
Thanks

Sorie,

The only other thing I can think of is that both are prone to lots of foliar diseases and both tend to get hit hard here by spider mites when the really hot weather arrives. Thus, I don't necessary plant them very close together. But, I've grown them 3 or 4' from one another and didn't have any more trouble with them in that way than when they were 30' apart. Hope this helps clarify what few concerns I'd have about growing them together. And, if space is limited, plant them together. What's the worse that can happen?

Oh, and one more thing. Every now and then we have a bad blister beetle year. Maybe once or twice a decade. In my garden the blister beetles devour two types of plants and only move on to other plants after they've eaten those two. Guess what those two are? Cucumber plants and tomato plants.

Dawn

Sorie, can you just put netting or a trellis from the ground to near the top of your west fence to plant your cukes. They should get plenty of sun during the day and a little protection from the hot sun in the afternoon. My cukes frequently have a 'melt-down' in the afternoon sun, but come out of it when the sun no longer hits them directly.

Things could change and we could have a dry year, but spider mites have never been a problem for me here, but foliar disease can be a real problem.

If nothing else, just make a trellis out of cord and start it 12-18" from the fence and then attach it to the top. I grow picklers on a cattle panel, then plant a few slicers on my chain link fence. I tell my neighbor that any cukes on her side of the fence are hers for the picking.