If trellises are utilized for growing the vining varieties, I can't think of anything that presents a problem.

EG

I'm guessing you can do all garden crops in sfg except tree crops. That is to say:apple trees, orange trees, blueberries, etc...

Sweet potatoes are tough because they spread out under the soil and you have no idea where they are growing. They'd need their own box. Mine were planted in 3 squares and they grew in every corner underneath other plants. So it isn't that it can't be done so much as it interferes with other plants and takes over so would do better with its own box.

i would even think that the "blueberry bush" could, but in its own, just like the sweet taters. ~Medo

I agree with the above posts. While things like perennial asparagus and trees can be done in a SFG, the do limit your options with that bed. I find it best to separate out perennials. Oh and on the note of blueberries, plants that require different soil characteristics could present a problem (blueberries need acidic soil).

I guess that's one of the reasons SFG is so versitle.

Enjoy and be creative.

Here is a link that might be useful: Sinfonian's garden adventure

My SFG is for veggie production only also. Each box will be dedicated to one veggie type that way I can amend the soil in that box as to what that veggie needs. I am also more liberal with plant spacing than Mel recommends. There is a sweet potato called Porto Rico that is more a bush type and does not vine nearly as far as the others.

John

Here is a link that might be useful: Johns Journal