I can totally understand how you can tell the difference. When we allow plants to just be who they are they really do surround us with such amazing, positive energy. I love my large pine trees that are at the back of my property, they feel like the guardians of the land to me. When I sit with my back against them, they feel so strong and loving at the same time. Potted plants give off sweet vibes but oh so different. I think we appreciate their beauty more than feel them. ;-)