Overview
Ash Bonsai (Fraxinus species) is a vigorous deciduous tree with compound leaves, strong trunk development and rugged bark. It is best suited to larger bonsai, informal upright and naturalistic broadleaf styles. For UK growers, treat it as: Outdoor.
Placement
full sun to partial shade
Watering
water generously in active growth
Feeding and fertilising
feed during spring and summer, but avoid overfeeding refined trees
Pruning and wiring
prune strongly to control coarse growth; leaf size reduction requires ramification and good light
Repotting
repot every 2-3 years in early spring
Propagation
seed or collected young material
Pests, diseases and common issues
large leaves, ash dieback disease concerns, aphids and coarse internodes