My broccoli seemed to grow full sized heads almost overnight. Just a few days ago (it seems) the heads started to form. Little florets hidden in the center of the plant. And now - all of a sudden - I have three big heads! I harvested these yesterday. We ate one of the heads at dinner last night. I cut it into long section, stir fried briefly in a little leftover bacon fat with garlic, ginger root and a chili pepper, then added water and steamed just until tender. Yummy.