Which rootstock should you choose? The 5-question test

How the tool chooses

It uses the tables of our guide Choosing a citrus rootstock and our experience at the nursery, near Toulouse.

1. It rules out the rootstocks that do not suit: not hardy enough for your frosts, “unsuitable” for one of your soil criteria, or not compatible with the citrus you want (for example Poncirus with lemon).
2. It ranks the others by how well they fit your answers (very well suited, well suited, suitable, middling, poorly suited).
3. It suggests, from the most to the least consistent, the rootstocks we sell that remain possible: Poncirus, Fa5, 4475 and C35. These are pointers, not a verdict. Carrizo and Volkameriana, which we do not sell, are mentioned when they help the choice.

In a pot, your garden soil does not matter and the tree can be brought in for the winter: only the citrus you want decides.