Polka Dot Begonia养护指南
Begonia maculata · Begoniaceae
Polka Dot Begonia (Begonia maculata) 是一种生态缸植物。 隶属于Begoniaceae科。 原产于South-east Brazil (Espírito Santo, Rio de Janeiro, São Paulo), in the Atlantic rainforest understorey。 生长需要good but filtered light for sturdy canes and bright spots; shade from hot sun, which scorches the leaves光照。 适宜水温：15°C – 22°C。 养护难度：Moderate。 生长速度：moderate。
如何养护Polka Dot Begonia？
| 光照 | Good but filtered light for sturdy canes and bright spots; shade from hot sun, which scorches the leaves |
|---|---|
| CO₂ | High humidity (no figure in sources), but airflow is essential |
| 水温 | 15°C – 22°C |
| 造景位置 | LARGE CLOSED or OPEN with ventilation – it grows well in big terrariums, but fungal problems mean it needs airflow and regular debris removal. NOT for small jars; only young plants fit, in a tall container, at the back. |
| 生长速度 | Moderate |
| 养护难度 | Moderate |
| 科属 | Begoniaceae |
如何修剪与繁殖Polka Dot Begonia？
Cut over-long canes back to 2–3 buds in late spring. In a terrarium, remove fallen flowers and dead leaves promptly to prevent rot. Take 7–10 cm stem cuttings in spring, in sandy compost with bottom heat of 18–21°C.
Polka Dot Begonia有哪些常见问题？
Powdery mildew or grey mould from stagnant, over-humid air; stem rot and collapse from overwatering (the main cause of losses); mealybugs, spider mites, thrips, whitefly, aphids.
如何解决Polka Dot Begonia的常见问题？
Increase air circulation and cut away affected parts. Keep moist but never waterlogged, letting the surface dry a little between waterings, less in winter; filtered or rain water is suggested. Light, free-draining, acidic to neutral compost. Liquid feed at alternate waterings while growing. Minimum about 10–15°C.
Polka Dot Begonia原产于哪里？
South-east Brazil (Espírito Santo, Rio de Janeiro, São Paulo), in the Atlantic rainforest understorey
购买Polka Dot Begonia前需要了解什么？
TOXIC to cats, dogs and horses (ASPCA): soluble calcium oxalates cause vomiting and drooling, and the underground parts are the most toxic. RHS advises gloves and keeping it away from pets; the sap may irritate skin.
参考来源
- Begonia maculata Raddi (GBIF backbone; distribution from WCVP/Kew) — GBIF / Kew World Checklist of Vascular Plants
- Begonia maculata - spotted begonia — Royal Horticultural Society
- Begonias as houseplants — Royal Horticultural Society
- Begonia - Cane Types — NC State Extension Gardener Plant Toolbox
- Polka Dot Begonia - Cane Types (Begonia maculata) — UF/IFAS Extension Santa Rosa County
- Begonia maculata — Wikipedia
- Large Terrarium Plants — Terrarium Tribe
- Begonia — ASPCA Animal Poison Control Center
养护信息已于 2026-09-23 与这些来源核对。