5. When is it a good idea to bury the Growboxx 50% or 100%?
Never bury 50%. If the tree is the main objective, and the 4 plants (either flowers or bushes) are an extra, we advise the surface of the box to be equal to the soil. This way it can still catch rain, and/or, you can do a refill through the siphon if necessary under extreme dry circumstances.
