Copper tubing as a form
Hi! I've been dabbling in topiary for a couple of years now. Just small stuff in pots, usually scented geraniums, though I've had fun with shaping thyme and lavender plants. My question concerns one of my most recent projects; variegated lemon crispum pelargonium trained onto some thin copper tubing I shaped into an R. The tubing seems to be working quite well; nice and sturdy, and it was easy to work with. My concern is how it will age below the soil. Does anyone know whether it will fall apart in a couple of years?