I have several grafted cultivars, but they are small and not fruiting as yet. I have eaten alot of the natives, and while they often are found along woodland creekbanks they really only need protection from the sun for a couple years when young around my location, and are more productive with more sun. Additional shade may be needed in a hotter drier climate. One caution never eat a over-ripe pawpaw, or even the smell of pawpaw afterwards will make you nauseas. A slightly overripe may be ok, but they can be almost sickening sweet are very strong scented. My wife will not let me keep them in the fridge anymore.