Orange trees are not fully hardy in the UK and cannot survive freezing winter temperatures outdoors. They are best grown in pots so they can be moved into a conservatory or greenhouse during colder months. While they enjoy summer sunshine on a patio, they must be protected from frost.

Water your orange tree thoroughly when the top few centimetres of soil feel dry to the touch. Ensure the pot has excellent drainage, as citrus roots are prone to rot if left sitting in water. During winter, reduce watering frequency significantly, keeping the soil just barely moist.

Citrus trees require a high-nitrogen feed during the growing season and a balanced winter feed during the dormant period. Specialist citrus fertilisers are available that contain essential trace elements like magnesium and iron to prevent leaf yellowing. Apply the feed according to the manufacturer's instructions, typically every one to two weeks in summer.

Orange trees often flower in spring, but it can take up to a year for the fruit to fully ripen depending on the variety. In the UK climate, you might see fruit ripening during the winter months if the tree is kept in a warm, bright environment. Consistent warmth and light are crucial for fruit set and development.

Orange trees prefer a slightly acidic, free-draining loam-based compost. It is advisable to mix horticultural grit or perlite into the soil to improve drainage and aeration. Avoid using standard garden soil, as it can become compacted and may not offer the correct pH balance for citrus plants.

Leaf drop is often caused by a sudden change in temperature, overwatering, or a lack of light during winter. Draughts and central heating can also stress the plant, causing leaves to fall. Ensure the tree is kept in a bright, cool, and stable environment away from radiators and cold winds.

Pruning is generally minimal and is best done in late winter before the main growth flush begins. You should remove any dead, damaged, or crossing branches to improve air circulation within the canopy. Pinching back growing tips can also encourage a bushier habit and prevent the tree from becoming leggy.

Common pests include scale insects, mealybugs, and red spider mites, particularly when trees are kept indoors. Check the underside of leaves and stems regularly for sticky residue or small insects. Wiping leaves with a damp cloth or using a biological control can help manage minor infestations.