Colossal Chestnut

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Castanea sativa x crenata 'Colossal' USDA Prohibits shipping chestnuts to Arizona. The Colossal chestnut is a hybrid chestnut cultivar that is known for its large nuts and high yie lds. Colossal chestnut trees are vigorous growers and can reach heights of up to 60 feet. They produce large, sweet nuts that are typically 14-18 per pound. The nuts are encased in spiny burrs, and they ripen in mid to late September. Colossal chestnut trees are cold-hardy, and they are relatively easy to care for, but they do require cross-pollination with another chestnut variety. Non "male pollen sterile," European x Japanese chestnut (Castanea sativa x crenata) hybrids such as Okei, Gillet, Nevada or even Szego (which is a complex hybrid). These are grown from tissue culture, they are not grafted. USDA Zone: 4-8 Grow Height: 60' (Standard) Sun: Full Sun Ripening Time: mid to late September Pollination: Needs a Pollinizer Read our Chestnut Growing Guide Show more