Castanea sativa – Spanish Chestnut, Sweet Chestnut (= C. vesca)
Habit: A splendid large tree, 10-35 m tall, 10-15 m wide or more; broadly extended, domed crown, twisted stem; medium to fast-growing, 40-60 cm a year; branches from stem with yearly shoots a meter long.
Flowers: Monoecious, cream-white male flower catkins with pungent scent, June-July.
Fruits: Prickly fruit capsules with brown, edible chestnuts, ripening at the end of October.
Leaves: Later shoots, elongated, some 20 cm long, dark green; golden yellow in October.
Roots: Deep roots with intense, far-reaching root system.
Demands: Sunny to lightly shady, likes warmth and very tolerant of heat, moderately frost hardy to sensitive; tolerant of urban pollution, wind resistant.
Soil: Fresh to dry soil, well drained, acidic or neutral substrates, sensitive to frost on heavy soil; somewhat tolerant of salt.
Hardiness: Zone 6a