Calamondin Orange Trees (Citrus mitis), also known as dwarf calamondin or calamansi, are compact and versatile citrus trees ideal for indoor cultivation or small outdoor spaces. These trees are appreciated for their glossy, deep green leaves, fragrant white flowers, and small, tart oranges used in various culinary applications. Here are some essential care tips and information to help you grow calamondin orange trees successfully:
General Care
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Light and Temperature: Calamondin trees require plenty of bright light, with a minimum of four hours of direct sunlight daily when grown indoors. They thrive in temperatures between 70° to 90°F but can survive as low as 20°F, though they should be protected from frost. They are winter hardy in USDA hardiness zones 9b and above.
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Watering: Allow the top inch of soil to dry out before watering thoroughly. Overwatering can lead to root rot, so ensure good drainage. For blooming, you might withhold water until leaves show slight wilting, then water thoroughly.
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Humidity: Moderate humidity levels around 40% to 50% are ideal. You can increase humidity around the plant using a pebble tray or by misting.
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Soil: Use well-draining soil, ideally a mix containing potting soil, organic compost, and vermiculite or perlite.
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Fertilizing: During the growing season, fertilize monthly with a full-strength water-soluble citrus fertilizer. In winter, reduce to half-strength every fifth week.
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Pruning and Maintenance
Prune annually to remove dead or damaged branches and maintain the desired shape. Light pruning can also encourage fruiting and new growth.
Propagation
Propagation can be done through seeds or more effectively through stem cuttings in the spring or semi-ripe cuttings in summer. Use a rooting hormone to increase success rates.
Pests and Diseases
Watch out for scale insects, spider mites, and aphids. Regularly clean leaves to prevent these pests. Diseases like gummosis, citrus canker, and citrus scab can also affect calamondin trees. Ensure good air circulation and avoid wounding the plant to prevent diseases.
Harvesting
Calamondin fruits are small, orange, and typically too sour to eat raw but are excellent for garnishes, beverages, and marmalades. They can be harvested by clipping them off with sharp scissors. The fruit should be used promptly as they spoil within a week.
Growing calamondin orange trees indoors can add a tropical flair to your space while providing you with fresh citrus for culinary use. With the right care, these dwarf citrus trees can be a delightful addition to your home or garden
