Watermelon auto

I had a bit of a snafu with these seeds. After I have tried to germinate 3 of them, only one popped. This wasted 2 weeks of my grow cycle and my other plant is on week 3 now. The delay introduced to my cycle is not going to help out and there is a big chance that the heat wave that will come later on will drive my electricity bills. But nature has his own course and I need to adjust.