. Zucchini is one of the easiest vegetables to cultivate in temperate climates, and it grows quickly. producing its first harvest as early as 50 days after sowing. Because of this, it has a reputation among home gardeners for producing very large yields, Each zucchini plant produces both male and female flowers that require plentiful bees for natural pollination. However in places with few bees, garden zucchini can be pollinated easily by hand, using a small paint brush.