Mature Olive TreeNothings sets up an entrance, or flanks a border quite like a nobly, gnarled, & wonderfully unordinary olive tree. These trees are 15 20 years old and are hardy in warmer areas of the UK, and very well suited to the microclimate of London. Best space & placeOlive are best situated in a sunny sheltered position. When to water & feedGrow in well drained soil. Water well in the growing months, and sparingly in winter. Need to know Olives are outdoor