My plant receives 6-8 hours of sun every day. It has new growth that is blooming but all the old growth with the melons on it is yellowing and then turning brown and withering. I am in the mid-west and we have had a late spring and a lot of rain. The plant is in a large pot on my patio. The pot is well drained and I have it on a plant stand so that air can circulate around it.