| Hello, We have a dwarf lemon tree which has thorns and produces lemons with a thick skin 0.25". Is this lemon tree a Ponderosa or Lisbon. Initially it was supposed to be a Eureka. |
| Eureka has few thorns and thin skinned fruit. Lisbon is very thorny with fruit similar to Eureka. Ponderosa bears large, thick-skinned fruits and the branches have a few thorns. Based upon your description, I'd guess you have a Ponderosa lemon. |
