Not familiar with this product but first glance leaves me wary. Animation makes it look like a sort of air-pruning pot stuck in the ground in its effects. Without investigating further am left wondering are the trees expected to root through the well, into the normal conditions on the other side? What happens then?

Here is a link that might be useful: Rootwell

bboy,

You are suppose to space 3 perforated tubes around the newly planted tree. I think the roots would grow between and around each one which are to be permanent. Rainbird picked this product up and installed bubblers in each, which for me isn't practical on acreage. Also, Rainbird is pricing too high for mass planting. I think that Rootwell might not be operating anymore since I tried to order and doesn't have payment information. The fax is another business and e-mail bounced. Too bad, got me all interested and now they aren't around.

Clint

Animation showing roots going deep was first red flag. Roots fan out through the soil, watering (or fertilizing) in columns doesn't allow for where roots are. Should be better to lay out bubblers and water the soil surface, without "wells".

The roots follow the water, and the deepwater supply makes for deep roots. Surface water runoff creates shallow roots.

The majority of roots are always shallow due to a need for oxygen. Only desert adapted trees do significant amounts of deep rooting. This would of course be because they grow in desert soils where the prevailing dryness results in air being present some distance down most of the time.