Both 😆 . I started with guerilla gardening, noticed trees are left alone more than small plants, then eventually bought some land where I now have about a thousand trees, some were there, most I have planted. It’s a permaculture-ish food forest incorporating regenerative Ag and carbon capture in the making.
I have a little nursery area where I sprout seeds and grow seedlings of all kind of trees and bushes and give them away and plant them wherever I can.
Going by your username, you also get your hands dirty. What’s your focus?