So I have been playing with these air pots for a year now. Really like them for 3 reasons. One I can adjust the depth of the pot. Two they come apart easy so I don't have to disturb the roots much to move plants to a larger pot. Three I run a automatic water system and with good draining soil I really haven't noticed any problems with over watering. The pic is of today. Taking advantage of the warm day and still frozen pots to repot. This Dawn redwood clipping had half a year to grow. Filled half a 1 gallon pot with super fine roots. Its a fast growing plant so not surprised.