Duke 7 Avocado

A very cold hardy avocado.  The scion wood for this avocado come from the famous tree in Oroville, Ca. Small elongated fruit of good quality ripens September through November in California with edible skin. Large, symmetrical tree is very cold and wind resistant. Also one of the more root rot resistant varieties, it makes an excellent rootstock for other varieties. Type A pollinator.   

About the duke: http://sacramentogardening.blogspot.com/2012/06/duke-rides-again.html

USDA organic

Pot Size: 4x10 tree band (a little larger capacity than a gallon pot)

Plant height: Grafted 1.5 ft

USDA Hardiness: at least 21 f maybe a lot colder