Overview
Hackberry Bonsai (Celtis species) is a hardy deciduous tree with small leaves, fine twigs and reliable growth. It is best suited to beginners, broom, informal upright and naturalistic deciduous styles. For UK growers, treat it as: Outdoor.
Placement
full sun to partial shade
Watering
keep evenly moist; protect from drought in small pots
Feeding and fertilising
feed through spring and summer
Pruning and wiring
clip back new shoots to build ramification; structural prune in winter
Repotting
repot every 2-3 years in early spring
Propagation
seed, cuttings and air layers
Pests, diseases and common issues
aphids, leaf spots and weak inner growth if the crown becomes too dense