Overview
Japanese Elm / Zelkova Bonsai (Zelkova serrata) is a fine-branched deciduous tree prized for broom style, tiny leaves and beautiful winter silhouette. It is best suited to broom style, formal upright, group planting and refined deciduous bonsai. For UK growers, treat it as: Outdoor.
Placement
full sun to light shade; protect from extreme drying wind
Watering
keep evenly moist in the growing season
Feeding and fertilising
feed through spring and summer
Pruning and wiring
clip new shoots back to build fine ramification; structural work in late winter
Repotting
repot every 2-3 years in early spring
Propagation
cuttings, seed and air layering
Pests, diseases and common issues
aphids, leaf scorch if dry, and weak inner twigs if the canopy is too dense