Plant growth is optimum under 28°–30°C, while fruiting is better at 24°–27°C. higher temperatures are beneficial during ripening. Arid regions of Rajasthan are best suited for production of quality fruits.Watermelon may be grown on a wide variety of soils. Sandy loams are best for early crop, while loam have high yielding potential. Alluvial river-beds are also good for watermelon. It is generally cultivated in river-beds by making trenches and sowing in hills or pits. A pH of 6.5–7.0 is ideal.