Zucchini half-ripe will not be poisonous. Zucchini native to southern North America, China in the mid-19th century from Europe began to introduce cultivation, the distribution of all over the world, Europe, the Americas are the most common. The most common is in Europe and America.

The optimal temperature during the growth period is 20-25 ℃, 15 ℃ below the slow growth, 8 ℃ below the growth stop. 30 ℃ above the slow growth and very susceptible to disease. Seed germination temperature for 25-30 ℃, 13 ℃ can germinate, but very slow 30-35 ℃ germination fastest, but easy to cause the growth.

Morphological features

Annual trailing herb with furrowed stems, with short bristles and translucent hispid. Petiole stout, shortly setose, 6-9 cm long; leaf blade stiff, erect, triangular or ovate-triangular, apex acute, margin irregularly sharply toothed base cordate, curved emargination semicircular, 0.5-1 cm deep, 3-4 cm wide dark green above, lighter color below Leaf veins are slightly raised abaxially, and both surfaces are hispid.