Sowing Temperature is 25-30°C, Plant Height: 30 cm, Fruit Size: 6-7 cm across, Sowing distance: 30 cm Plant to Plant, Best for: Bed Sowing, Sowing method: Seedling. Summer squash does everything but plant itself! If you're looking for a vegetable that's easy to grow and produces huge yields, you can't beat summer squash. Anyone who has grown zucchini can tell you how prolific these plants can be. This vegetables is healthy and very easy to grow. This is something which is must to have in your kitchen garden.