New Zealand mirror bush (Coprosma repens) is an excellent choice for bonsai for several reasons:
- Glossy foliage: The leaves are small, thick, and incredibly shiny (hence “mirror bush”), giving it a distinctive, polished appearance
- Dense growth: It responds well to pruning and develops compact, bushy growth and the small leaves reduce naturally without special techniques
- Hardy: Very tolerant of different conditions and beginner-friendly
- Fast growing so results can be seen relatively quickly
- Year-round interest: Evergreen with attractive orange or red berries (on female plants)
Growing requirements:
- prefers full sun to partial shade
- tolerant of coastal conditions and salt spray
- not frost-hardy, so needs protection in colder climates (zone 9-11)
- likes regular watering but is somewhat drought-tolerant once established
- well-draining soil is essential
Styling tips:
- takes well to most bonsai styles, particularly informal upright, windswept, and cascade
- Responds excellently to wiring and shaping
- Can develop interesting trunk character with age
- Regular pinching encourages ramification and denser foliage pads
Maintenance:
- Prune frequently during the growing season to maintain shape
- Can be pruned hard and will back-bud readily
- Repot every 2-3 years in spring
- Benefits from regular feeding during growing season
Mirror bush is particularly popular in New Zealand and Australia for bonsai and increasingly appreciated worldwide for its ease of care and attractive appearance.