This is interesting:
On a similar note, forest cemeteries have become popular in Germany in recent decades. My siblings fed the ashes of our mother to a tree in such a forest cemetery. The urn was buried with those of several others around that tree.
That's a really beautiful sentiment. I think I'd like to encourage these options with all of my family members. I worked IT for a funeral home acquisition company, and I spent some time installing network equipment in funeral homes after-hours, observing the traditional options. Without getting too specific, I'll just say I came out not liking any of the traditional options.
