Overview
Red Maple Bonsai (Acer rubrum) is a North American maple known for red spring growth and vivid autumn colour. It is best suited to autumn display bonsai, informal upright and forest plantings. For UK growers, treat it as: Outdoor.
Placement
sun to partial shade; protect from leaf scorch in hot wind
Watering
keep evenly moist and never allow fine roots to dry completely
Feeding and fertilising
feed moderately in spring and early summer
Pruning and wiring
structural prune in late winter; trim new growth during the season
Repotting
repot every 2-3 years in early spring
Propagation
seed, cuttings or air layers
Pests, diseases and common issues
leaf scorch, large leaves, aphids and weak colour in shade