Olives provide a bold mediterranean ornamental statement with silvery foliage and twisting trunks. They prefer hot climates but still do well here in coastal gardens. An olive grows slowly and may need a more consistent watering schedule to get started in the sand.
Olives are lovely when trained to a multi-trunk form. If this is the desired effect, you will need to plan on pruning to this shape annually. Otherwise maintenance is generally low.
If you are planning to grow olives for fruit, plan on shopping around for a cool weather variety at a specialty nursery. A word of caution – fruiting olives will drop a lot of fruit (and stain) and should be kept away from foot traffic areas.
You can buy advertised "fruitless" varieties of olive, but some have been known to fruit anyway!