Squash (pumpkin type): Rouge Vif Deetempes Cucurbita Maxima Approx. 2-3 seeds per gram Always popular at Halloween, pumpkins are fun to grow in the garden if you have enough room. They are vigorous trailing plants and take up quite a bit of space. The larger varieties need a long growing season and are great for competitions and carving. Smaller types are more practical in the kitchen.