Overview
Boxwood Bonsai (Buxus species) is a dense evergreen shrub with tiny leaves, rough bark and strong suitability for formal bonsai shapes. It is best suited to beginners, formal upright, broom, group plantings and topiary-style bonsai. For UK growers, treat it as: Outdoor, with shelter from severe frost in shallow pots.
Placement
sun to partial shade; protect from scorching wind and very hot afternoon sun
Watering
keep evenly moist but not wet; box dislikes both drought and stale waterlogged soil
Feeding and fertilising
feed lightly through spring and summer
Pruning and wiring
clip new growth often to maintain compact pads; wire young shoots before they harden
Repotting
repot every 2-4 years in spring
Propagation
semi-ripe cuttings root reliably
Pests, diseases and common issues
box blight, box tree caterpillar, leaf scorch and root problems in poor drainage