bwildman: I must disagree with the "like damp areas"...ours never gets watered and we haven't had much rain in the last 3 years...also we have a sandy soil so their is no retention of water. They are easily grown from seed as I have 3 about 18inches tall waiting to be transplanted....once it cools down a bit here. Yes the will handle full sunlight...well mine do.
Mine are Papua New Guinea variety and are about 18in - 2ft long and about as round as a bread and butter plate...maybe even bigger and the flesh is red as opposed to the pinky/orange flesh of normal paw paw. Also it is juicier:)
There is only one tree and I dont know how it got there...They say you need a male and female but I only have one tree so maybe it is bisexual? I have no idea, it is still flowering and they all become fruit unlike passionfruit that have male and female flowers....can anyone enlighten on this?