>>565013>olive treesA fellow villager once got a couple small ones as a gift from Spanish friends in around 2006/07 (don't know how old they were at this point, maybe 2-3 years), he planted them out and they've already been carrying for a few years now even this far up north here (I'm
>>564597).
Of course he always has to build a huge contraption around them for winter protection
So if you live somewhere warmer, it should be even faster (that is if you buy some inexpensive small plants, growing them from seed is supposed to take very long - several months until they sprout, plus they won't have the properties of the mother plant)