The Harvey Lemon is a cold-hardy variety that thrives in below-freezing temperatures. The juicy, nearly-seedless lemons are perfect for drinks and desserts. The tree is disease resistant as well.
 
Taste: Harvey has a true tart lemon flavor and high juice content.
Tree size: 10 - 15 ft tall
Seeds per fruit: Few
Season: September - March
Zones: 8 - 11 (20F)