I'd agree with collecting plants right from the wild, Yuen, but seed collection is a symbiotic relation of man and plant; if the plant is not invasive (at least not as much as the man
), then it benefits the whole ecosystem. If personal posession enters into it then perhaps someone is owed recompense, but from the wild I think both sides gain in the collection of seed, done in a responsible manner (never more than ten percent of the available specific stock).
Using native plants from the wild offers habitat to native flora and fauna that they recognize and already use; In many of my gardens I am very selective about removing what Nature volunteers. Bringing Nature into your yard is also very Taoist...
Fulfill what you have recieved from Nature, without the idea of attainment; just be empty
Tao Te Ching