I live in Southeastern Nebraska, and am trying to grow moonflowers for the first time in a small garden. I know they can grow here, because my mother did it last year. I soaked the seeds for two days before I planted, but didn't put the seed down any particular way. I have sprouts in the garden with purple stems, but I'm not sure if they are the moonflowers, or just weeds! (This is my first gardening attempt, be gentle!) I was wondering if anyone had a picture of a plant that is about four or so inches tall or some way to identify it to know whether to pull them or not?