"It" refers to the produce-laden patio. Hibler said they're putting in planters that will grow, among other things, heirloom tomatoes, which the pizzeria will use in salads and on pizzas. "And we'll have some herbs and lettuces and greens coming out of there. We'll be able to use the [garden] space; even when those aren't fully mature we'll be able to grow stuff undeneath them."
*Flickr photo by Clayirving