The Chicago Hardy fig (Ficus carica 'Chicago Hardy') is a cold-hardy, self-pollinating fig tree that produces sweet, brown to purple fruit. It's a popular choice for home gardeners and commercial growers. 
 
Appearance: 
Large, leathery leaves with 3 to 5 lobes
Medium-sized fruit with light brown to deep purple skin
Sweet, pink flesh
 
Growing conditions: 
Thrives in full sun
Prefers well-drained, acidic soil
Can tolerate a variety of soils
Can be grown in containers
 
Hardiness: 
Can be grown in Zone 6 and warmer
Can be grown in Zone 5 if protected with mulch during dormancy
Stems are hardy to 10°F and the roots are hardy to -20°F