A grex donated by SeedAmbassadors is my ground material in my attempt to develop a new melon variety. It consist of an interbreeding of different early and cold tolerant melon varieties, breed in Oregon for a few years. The idea is to select over a series of years for best performance in your own garden, in northern gardens. Last year I grew a Minnesota Midget direct seed in open ground, it ripened fairly well, but the seeds was not ripe. This year I try the Northern Melon Mix, starting it early may indoor, planting out in june on a trench with horsemanure and black plastic mulch. This is not a warm summer, and if some of them manage to ripe seeds, it is definitely a succes.