Position
Plant your orange tree in a spot that enjoys full sun and adequate protection from the wind. To allow it to grow unhindered, your trees should be planted 4 to 6 metres apart from one another.
Size
An average, healthy orange tree will reach a height and canopy spread of about 9 metres. However, these oranges can also be grown in a pot (55 litres at least). Orange trees do not like their roots to be disturbed. So, don’t plant other trees, bushes or flowers near them.
Soil Type
Orange trees need healthy and well-drained soil. Add compost to the hole that you dig for your tree so that it is in prime condition to nourish the roots. If you’re opting for a pot, use a good quality potting soil and a pot with drainage.
Watering
Orange trees need to be well-watered regularly; those in pots even more so. Generally speaking, your orange tree should get 2.5 to 4 centimetres of water per week.
Mulching
Add a thick layer of pine bark mulch, keeping it about 20 to 30 centimetres away from the tree trunk itself (any closer and it may cause excess moisture to damage the trunk). This will retain the moisture in the soil and will prevent weeds from taking over.
Fertilising
Give your orange trees the best chance by fertilising them well. If the leaves start to yellow, your plant may not have enough magnesium. Apply a little Epsom salt to the tree’s dripline (where the leaves extend their reach). Apply our slow-release fertiliser – 2 teaspoon every 3-4 months; even though it is called berry fertiliser it is for all plants/trees.
Pruning
Your orange tree will only need to be pruned to remove dead or diseased limbs, or to remove those that are too close to the ground (around 30 centimetres or less).
Pests and Diseases
Aphids, citrus psylla, red scale, citrus greening. Spraying regularly with Agricultural Neem Oil or Effective Microorganisms (EM Control ) will assist in either prevention or after the fact. If you already have aphids or mites, wash the tree with a harsh hosing, and when dry, spray with Neem oil or EM Control.
Practice good garden hygiene (remove fallen fruit and leaves).
Watch for root rot (if overwatered) and fungal infections during wet periods.
Harvesting
The fruits can be harvested from spring to summer and usually continue to bear fruit for decades. The orange should be fairly easy to pluck from the tree if you gently twist it from the branch.
