In Dallas Tx, temperatures have been hot 90-100 high and 70s low for the last several weeks, even several over 100 days. I have couple of vines of sponge gourd. Plants have grown well and are healthy except for the moderate aphid infestation. The plnats have been flowering now for almost 5 weeks. Only male flowers. I have not seen even a single female flower. I know these plants are supposed to bear both types on one plnat and female floweers follow the male flowers. But isn't 5 weeks kind of too long?

Is there anything I can do? Thanks.