ok, i see my reply may not have been as useful as i considered. as a small-time grower, i deal with maybe 4-6 plants at one time, and usually only about 3 gallon soil per plant.

in my local, i feel no immediate threat to myself or to growers in general, and find it odd when people get freaked out about spy helicopters searching for thier crops.

if you want the most extreme way to ditch your dirt, why not fill a couple black garbage bags and truck them out to some field 10minutes from home?