I'm lucky. I get to spend most mornings strolling through my garden, coffee in hand, admiring my plants and pulling weeds that dare to raise their unwelcome heads. I find that weeding regularly makes gardening less of a chore and it's an effective way to stretch a little before breakfast as well.

But no matter how many weeds they've plucked, even veteren gardeners get stumped at times trying to determine what is, and what is not, a weed — particularly in the spring when everything is just beginning to peek out of the soil and your winter brain has wiped all your geographical gardening memories clean. "Is this where I planted a patch of Primrose or are these weeds that need to be annihilated?"