Gardening: Tough-as-nails houseplants

As I look out at leafless trees and snow, I am not the least surprised that houseplants have been popular for centuries. And it doesn’t take snow on the ground to want to bring a little natural colour into our homes.
No plant ever developed naturally to survive in a home. Compared to much of the outside world, houses are dark, dry and occasionally drafty. And rarely does it rain in your house unless the upstairs bathtub overflows. Thus, potted plants rely on a human to supply all essential