Here in CA., our yards are postage stamp sized, but I have 3 tomato plants all shoulder high with green tomatoes. ...3 cuke plants and we've had the first cuke in our salad the last couple nights.
We like our 3 roses....special ones that I picked out....we tore out 60 white rose bushes, the kind that bloom and fall off. I don't like those.
I love the mandevillas and they grow like crazy here....also bouganvillia (sp) very colorful. Kalanchoes too....which you can pinch off and make more.
Even though our yards are small, we can still fill a huge green can each week with the trimmings. I love it that we have palm trees here.