What's compatible with potatoes?! Potato newbie here

[mollipop]

I *really* want to maximize my little backyard garden space (and not waste water). There's a lot of distance between my potato plants (18" or so). I've been hilling them and a lot of the water runs into the lower spots b/w the potatoes. Does anyone have any suggestions for something that I could plant between them? (Also, I got them in a little late for my area - Houston- so some shade from taller plants wouldn't be so bad, right?)

Thanks!  

[rhianna813]

I've heard green beans are very compatable and can be grown on top potato hills. Beans would definitely provide shade if you trellis them up.

Here's a link about companion plants for potatoes: http://organicgardening.about.com/od/vegetablesherbs/p/potatocompanions.htm

Rhianna