The species has gained rapidly in popularity since the middle 'thirties when enough good-performing trees began bearing for a fair appraisal of the species to be possible. It was also at about that time that trees for planting began to be available from the nurseries. Before then trees could only be had in limited numbers from the Department of Agriculture. Today, they are listed in nursery catalogues of one or more firms in each of a half dozen or more states. The total number of trees yet planted is comparatively small and both nurserymen and planters up to this time have proceeded cautiously because of the newness of the industry and its uncertainties. Environmental Requirements The Chinese chestnut requires much the same conditions of climate soil, and soil moisture as does the peach, but there are indications that it will succeed somewhat farther both north and south. As with the peach air drainage must be good and frost pockets must be avoided, for while at the latitude of the District of Columbia, the flowering period is from late May until toward the end of June, growth begins early and may be badly damaged in April. This is especially true during such seasons as those of 1945 and 1946 in the middle Atlantic States when summer temperatures prevailed during a great part of March, and new shoot growth up to two inches had developed when sub-freezing temperatures killed all new growth and so injured the buds that at Beltsville, Maryland, and general vicinity there were no crops in either year. In some cases young trees were killed out-right as were occasional older trees that had become devitalized in some way. Young trees are so sensitive to lack of soil moisture that sometimes whole plantings are killed by drought. Spring growth is rapid as long as the soil is moist but root development is shallow during the first few years and, unless watered, trees are likely to fare badly in case of prolonged drought. Another serious type of injury, especially to newly planted trees, is sunscald on the exposed sides of the trunks. Probably the best means of prevention is to head the trees low enough to provide for shading by the tops.