Cucumber (Cucumis sativus) is a widely cultivated plant in the gourd family are packs have around 300 seeds in them and around 1000 a once. Cucumbers. Are not cold tolerant. At all. And don't transplant well these are great for trellis. If you live in a long growing season area. Do 2 or 3 plantings about 1 month apart. To keep you in cucumber all the way until fall.