Have planted watermelon and now growing very well. Cannot find type of melon by just leaf and rain washed away package. What type do I have?
I'm sorry but I would not be able to identify the variety or cultivator either by just the leaf.
Most watermelon leaves and plants would look virtually the same no matter the variety that you have planted.
The watermelons themselves may help you with identification.
Perhaps visiting the same store that you purchased the seed initially would help. They likely have the same seed packets still in stock.