My basil is growing in big feed tubs with one 1/2 inch drain hole on the down hill side.
There is clear tubing coming up from the drain hole to the top.
This allows me to see the water level and drain if needed.
The plus side is if fire ants invade I cant just flood them out.
Which they have once or twice.
My basil is infested with little attack spiders which is a good thing.
