That’s a gross misinformation by the seller. Olives are hardy to 8b, maybe 8a with a favorable micro-climate. Basically, olive trees are killed by temps below 15 F. There was a discussion of olive tree hardiness on the forum, you can search for it.
That’s a gross misinformation by the seller. Olives are hardy to 8b, maybe 8a with a favorable micro-climate. Basically, olive trees are killed by temps below 15 F. There was a discussion of olive tree hardiness on the forum, you can search for it.