| Zones | Description | Characteristics | |
| Conditions | Crops | ||
| Z1 | Lowlands | Higher temperatures Low rainfall | Typically, Sisal |
| Z2 | Upper Lowlands | High temperatures Low rainfall | Sorghum, millet, early maturing maize and beans |
| Z3 | Lower Midlands | Mid temperatures Average rainfall | Maize, cassavas, sweet potatoes |
| Z4 | Upper Midlands | Low temperatures Above average rainfall | Maize, sugarcane, potatoes, tomatoes, agroforestry |
| Z5 | Highlands | Lower temperatures Higher rainfall | Agroforestry, natural forests |