My containers are mostly small, nothing larger than 3 gallon (except for the useless lemon tree, which I haven't even moved outdoors yet). I have a nice, big, enclosed back porch with big windows on the east and south sides where I overwinter my pots. But it always ends up with aphids, whiteflies and fungus gnats. I'll have to try your method this winter 'cause I have a bunch of new plants that will need overwintering. I usually put up a barricade so my idiot malamute can't mess with the plants. If it's aromatic, he tries to roll in it, if it's little he grabs the pots, empties them out and crunches the pot. Idiot.