I love these old abandoned gardens. There is one on a hill near my place. The property has got a big for sale sign up on it. I couldn't resist jumping the fence recently and taking a look around. Lots of old Agaves and Aloes there, plus two big clumps of Haworthia! Some other succulents that I couldn't identify. Some were climbing cacti, going right up to the tops of the tallest gum trees. The tragedy is that someone will buy this one day and say "God what a mess of weeds!" and eradicate the lot. The government and environmentalists also use such places as examples of potential naturalizations and "sleeper weeds". Damn eco-fascists!