Why are my pumpkins yellow?
I live in Denver, so pumpkin growing can be tricky without much rain. However, this summer I was diligent in watering and am rewarded with two very large, healthy vines called Prize Winner. I currently have one basketball size pumpkin on each vine -- but they are both yellow! My experience is that pumpkins always start out green and slowly turn orange.
Is it possible my zucchini and butternut squash are too close and caused cross pollination? I have experienced that phenomenon before, but got strange looking mutant shapes and have since learned to keep them apart in my 14 x 35 vegie garden
Thanks in advance for any help.