How Fast Will Calamondins Grow?

Climate Requirements

• Calamondins were developed first in the Philippines by breeding together kumquats and mandarins, both native Asian citrus species. As with most citrus trees, calamondins perform best in warm, humid climates where frost is rare. Although they can survive very light frost, calamondins require a more sheltered planting site and extra care at the lower end of their USDA hardiness zone range. Additionally, calamondins can survive moderately intense drought conditions with minimal damage, but they must be provided with additional water to prevent leaf drop.

Growing Conditions

• Full sun and acidic soil are required to grow calamondins successfully, although they can tolerate some light shade and neutral soil with few problems. In colder climates, plant the trees against a south-facing wall to maximize the amount of light and warmth they will receive in winter. Avoid growing calamondins in poorly drained soil or deep shade, because both conditions will restrict the trees' growth and may cause it to die prematurely.

Care

• Calamondins grow most vigorously during their first year, producing up to 2 feet of growth in less than 12 months. Although they will thrive with little attention, calamondins benefit greatly from routine care during their early establishment phase. Weekly watering during their first summer is essential, especially in warmer climates. Reduce watering by half once the tree is established and always let the top few inches of soil dry out between waterings. Annual feeding with 20-20-20 ratio fertilizer will promote abundant fruiting, but it is not strictly necessary if the soil conditions are normal. Most calamondin trees do not require pruning, but damaged or unwanted side branches can be removed as needed to improve the tree's appearance.

Considerations

• Although relatively small in stature, calamondin trees spread out significantly as they mature and may quickly outgrow their planter or bed. This may cause a safety concern because their branches are lined with short spines, which can cause injury. Plant calamondin trees at least 4 feet away from walkways, playgrounds and other heavily trafficked areas to prevent injury. Also, bear in mind that calamondin fruit may create a mess if left to mature and fall from the tree.