Plant swaps (you don't have to bring anything to give yourself if you have nothing to share) are pretty popular where I live. And seed swaps in the spring.
Comment on What is the charge? Taking a leaf? A succulent aloe vera leaf?
Waterpumpee@lemmus.org 1 day ago
Another idea is to build communities to propagate plants (regardless how they were acquired) and share them (nearly) free of charge.
Drusas@fedia.io 16 hours ago
SpaghettiMaster@feddit.uk 1 day ago
We call those allotments in the UK.