Both mother nature and farmers plant seeds outside in full sun all the time, so your plants have more than a chance. The big difference is that you need to "interfere" since you have them on your patio. By this I mean you need to water them and such. I am not sure what you mean by "the 2 cup method", so please describe. Other than that, I am wondering if you took the plants through a hardening off process before putting them in full sun or if you got them from a source that had them out in full sun previously. If the plants were indoors or sheltered in any way, you need to gradually introduce them to full sun or they might get sunscald. Pics of the plants would help us give you some tips.