The Olive Tree can be grown outdoors during the summer and in all but the milder areas of the country will need the protection of a greenhouse or conservatory from autumn to spring. Best results will be obtained when grown at temperatures above 0ºC (32ºF). A few degrees of frost can be tolerated provided it is not prolonged.
In May white flowers produce a lot of pollen, therefore the plants should be kept away from expensive furniture in the conservatory. Once the danger of frost has passed the plant can be moved outdoors to a sunny spot on the patio. A balanced liquid fertilizer should be applied at weekly intervals from April through to the end of August. Before the first frost move the plant back under protection for the winter.
Repot the plant in spring using a John Innes number 3 potting compost to which additional sharp sand or grit has been added to improve drainage. Towards the end of February remove any dead, damaged and diseased shoots and trim to shape.