pumpkins blooming but not fruiting

pumpkins blooming but not fruiting

i planted two types - jack o lantern and super sweet pie. the vines are growing like crazy and im getting tons of flowers - i guess there are two, the male with pollen and the female that will fruit. well, as the title suggests, im getting tons of flowers, but the female ends just wither away after blooming. ive even gone to trying to pollenate them myself but nothing. whats going on here?
Pretties!

Pretties!

Future Domestic

Future Domestic

Things I’ve Learned in the 1st Year

Things I’ve Learned in the 1st Year

Today’s harvest

Today’s harvest

First post!

First post!

Diagnosis help…

Diagnosis help…