On October 13 in Loveland, Colo., the day before a hard freeze and a six-inch snowfall, the flowers I’d planted on the west side of my house were still going pretty strong. That was no thanks to me, since I’m a novice gardener and not strong enough or educated enough to do the proper things, like amending the soil and fertilizing. (All I know how to do is buy the plants at Lowe’s and plop them into the dirt.) But these flowers have been very forgiving of me for the past few months. I was especially surprised to see foxglove blooming in October. And even now, on October 24, after the snow and the cold, the verbena still has blossoms. Even if the perennials among these don’t overwinter, I’ve gotten my money’s worth of enjoyment out of them.