This might help

Here is a link that might be useful: Shade Cloth

who told you you need to shade them for the first year ...

i do not accept the premise.. without more facts ...

ken

Thanks whaas.
Ken. The person I got it from told me and it seems to be mentioned often when googling paw paw trees.

If these are bareroot transplants, shade is probably a near-necessity. If container-grown, probably not absolutely required. I've transplanted a number of pot-grown pawpaw seedlings, and provided no shading, and they did just fine - and I pruned off the circling taproot in the bottom of the pot, so don't buy into the myth of the magical taproot thing.

Depending upon how tall your seedlings are, a white 5-gallon bucket, with the bottom cut out and placed over/around the tree may provide enough 'shading' and protection from wind-dessication while they're getting their root systems established and still allow sufficient sun exposure to carry out photosynthesis.