We're not able to grow many large plants with the large green leaves here! I keep them on one side of the property now, not much water given them, but they do okay, just some wilting when it doesn't rain for a while (often during the summer). They bloom and make lots of berries in spite of everything. I grow them for the birds! And other things eat some of the foliage. They must have deep roots here. The birds give them enough fertilizer, so I don't bother. Here's my grove of pokeberry plants earlier this fall. The foliage is all zapped by cold now, will be back in spring!
