Basically, it is important to water all plants from the top because as
the water moves down through the soil it will push out the old air and
draw in fresh air.

Bill, I bow to you in most situations, but this sounds bogus to me. Water will displace air whether you add it from the top or bottom, and when it drains, air will come back.

Nina. I bow to Bill. Really. Watch at the next MidAtlantic Conference.

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