Jooni
Citrus
3 Species
Species
Fertilizing
Apply a balanced, organic fertilizer monthly during the growing season (April-August). For optimal results, use a fertilizer designed for acid-loving plants and dilute to half strength. Citrus bonsai store natural fertilizer in their leaves, so avoid over-fertilizing. For fruit production, use a high-phosphorus fertilizer during the flowering period. Never use full-strength fertilizer sticks designed for ground-grown citrus trees, as these can damage the delicate root system.
Placement
Position citrus bonsai where they receive at least 6-8 hours of direct sunlight daily. While they can grow indoors near south-facing windows, they thrive best outdoors. In warm climates, they can remain outside year-round. However, bring them indoors when temperatures drop below 50°F (10°C). The ideal temperature range is 60-80°F (15-27°C). Maintain moderate humidity levels by placing the pot on a humidity tray filled with water and pebbles.
Pruning
Begin shaping after one year of growth. The tree tolerates wiring but watch carefully to prevent bark damage. Remove branches that cross or grow inward to maintain good structure. After six months of training, prune the top two leaves to encourage outward growth. While healthy trees can handle regular pruning, avoid over-pruning as it may affect fruit production. Winter pruning is possible if the tree receives adequate light and shows vigorous growth.
Repotting
Repot every 2-3 years in spring before the main growing season begins. Use well-draining, slightly acidic soil mix combining peat moss, perlite, and sand in equal parts. When repotting, vigorously trim the roots and ensure the new container has adequate drainage holes. After repotting, water thoroughly and expect some temporary stress signs as the tree adjusts. Use fresh potting soil with each repot to maintain optimal growing conditions.
Watering
Water thoroughly when the top inch of soil feels dry, ensuring excess water drains freely. Citrus bonsai prefer consistent moisture but can tolerate brief dry periods - overwatering is more dangerous than slight underwatering, especially indoors. Avoid using hard tap water or water with high lime content; rainwater or filtered water is preferred. Water more frequently during summer months and when placed outdoors. Maintain good drainage to prevent root rot.