This is a great shrub/ small tree to plant. Our beautiful neighbours have one on their nature strip which is often fruiting. We have planted a small one at the front of our place, but it is yet to fruit They make a great hedge and will suddenly flush with an abundance of these sour cherry-like fruit.
They are delicious, a bit sour and high in vitamin C. The latin name is Malpighia emarginata, also known as Acerola and as the name suggests originally from the Caribbean.