I had the misfortune of being dragged to Westonbirt Arboretum by my wife and daughter a couple of weeks ago, and they had a fine selection of Lignum Vitae trees. They’re actually quite small, and I reckon I could have gone back in the middle of the night and liberated one if I 1. Was shameless enough to do so, and 2. Could be bothered.
Neither were impressed by my interesting Lignum Vitae fact about it being the densest wood on the planet. Tough crowd.