Overview
Lilac Bonsai (Syringa species) is a flowering shrub known for fragrant spring blooms and attractive old bark. It is best suited to flowering bonsai, clump styles and informal uprights. For UK growers, treat it as: Outdoor.
Placement
full sun for the best flowering
Watering
water thoroughly when the surface begins to dry, especially in spring
Feeding and fertilising
feed after flowering and through early summer
Pruning and wiring
prune immediately after flowering because next year's buds form later; avoid late heavy pruning
Repotting
repot every 2-3 years in spring after flowering or as buds swell
Propagation
cuttings, suckers or layering
Pests, diseases and common issues
powdery mildew, aphids, poor flowering from shade or pruning at the wrong time