Should I prune Euphorbia and if so, when? I live in Medford, Oregon zip code 97504, zone 8b. Susan
Certified GKH Gardening Expert
Some evergreen euphorbias simply need to have their faded blooms cut back after flowering. Some varieties have biennial stems, which need to be cut down to the ground after flowering. Deciduous types need to be cut down to the ground in autumn.