How to Care Olive Trees
Olive trees, planted as an ornamental or for their edible fruits, prefer hot and dry summers. They thrive in coastal regions and in the sub-tropics, but you can grow them anywhere that has high summer temperatures. Frost tolerant after they reach maturity, they must be protected in the early years; a greenhouse or other sheltered area is necessary to protect young olive trees in winter. They are evergreen and can live for more than 100 years.
Step 1
Plant olive trees in large terracotta containers on wheels if the trees must be moved in winter. Choose well-draining, raised containers and line the inside with clay shards to avoid soil loss when watering.
Step 2
Plant in the ground where there is well-drained, mildly-fertile soil. Fill containers with loam compost and add three to four handfuls of sand or coarse rock to improve drainage.
Step 3
Choose an area with full, all-day sun to plant or site your containers. Choose areas with protection from high winds, as this will cause the fruit to drop prematurely.
Step 4
Water deeply once a month the first three years after planting. Water deeply during extended dry periods thereafter when there is very little or no natural rainfall.
Step 5
Trim young trees of all but five strong branches from the main shoot. Prune out any dead wood each year to encourage new shoots to form.
Step 6
Fertilize with a nitrogen-rich fertilizer before the flowers form to encourage healthy fruiting later. Use a liquid fertilizer every four weeks for container-grown trees.