An In Depth Look at Female Plants Producing Seeds without Males Grapes Seeds "vitis amurensis" organic seeds Sela Seeds Seeds like poppies, delphinium, larkspur actually need a cold period to germinate well. , Its called cold stratification. Basically, in nature these seeds would sit through winter before sprouting in Transitioning plants from indoors to outdoors requires a very gentle transition for both light and heat. I moved these plants into an area where I knew the exact lighting pattern One hour Will rue flowers produce seeds for next year?