Tag for questions asking how to look after trees.

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How do I prevent Ficus tree roots from invading other areas?

How far can I cut back the roots on my Ficus trees and maintain their life? Is this even possible? They are approximately 20 ft in height and 10 yrs old.
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What are the limits to growing plants hydroponically?

I'm working with a group of artists, educators and engineers to develop new methods for STEM teaching in classrooms and museums. Right now, we are trying to design a room-sized model of the carbon ...
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Can these two trees be identified by photo.

I would like know what these tree are. They are located in San Diego county California. The trees may not be native. Thanks, Jon.