It was introduced into Japan and became naturalized there in very early times. It has been cultivated in Japan for over 1,000 years. It has also become naturalized in India and many other areas. Chinese immigrants are presumed to have carried the loquat to Hawaii. It was common as a small-fruited ornamental in California in the 1870's, and the improved variety, Giant, was being sold there by 1887.
Japan is the leading producer of loquats, followed by Israel and Brazil.
The loquat is adapted to a subtropical to mild-temperature climate. Where the climate is too cool or excessively warm and moist, the tree is grown as an ornamental but will not bear fruit. Extreme summer heat is also detrimental to the crop, and dry, hot winds cause leaf scorch. High heat and sunlight during the winter often results in sunburned fruit. The white-fleshed varieties are better adapted to cool coastal areas.