They're probably breeding them so I'd call it "reforestation".
.
Tucson is now full of artificial cacti.
.
Reproducible, yes, but slow-growing. I read up on them when I thought growing them from seed and selling them for $100 a foot was easy money. It's not. They don't even get a first "arm" for 15-20 years, and if you want something that looks like the ones in the Road Runner cartoons, leave them in your will for your great-grandchildren.