Position – Plant your clementine tree in full sun for the best results. Those planted in partial shade survive, but do not usually produce as well as their sunny counterparts. If you are planting your tree inside, give it the brightest spot in the house, and repot it with new soil every two or three years. They do particularly well in hot, humid conditions.
Size – This tree takes two to three years to reach maturity and its full size. It is a medium-sized tree, which will usually reach a height of about 3 metres.
Soil Type – Slightly acidic sandy soil that drains well and is healthy is ideal for your clementine tree. If you suspect that the nutrients in your soil are deficient, it’s important to add organic matter.
Mulch – Give your clementine tree a light mulching every summer to help to prevent the moisture in the soil from evaporating too quickly. Organic mulch (like hay, leaves or grass) also helps to supply nutrients to the soil. Remember to take the mulch away from the trunk so that it doesn’t become soaked in water.
Watering – Clementines need the soil to be moist, but not waterlogged. So, only water your tree when the top 2.5 to 5 centimetres of the soil have dried out. A mature tree will likely only need to be watered once a week, while very young trees should be watered every two or three days. If your tree is in a pot, empty the water tray below it regularly.
Fertilising – This tree thrives with fertiliser. Apply a slow-release fertiliser at the beginning of spring and autumn, or a regular one every-second month.
Pruning – Pruning is best done in spring, but can be done at any time of the year, since clementine trees don’t go dormant. Remove dead or dying limbs, offshoots / suckers, leggy branches or branches that cross in the middle of the canopy. Only prune a third of the tree at any one time.
Harvesting – Start to pick your juice clementines in the middle of winter. Wait for the skin to be completely orange (with no green on it) before plucking the fruit. The fruit should feel heavy and slightly soft when pressure is applied.