The snow has only just melted in Calgary, but strawberries, eggplants, several kinds of tomatoes and even Meyer lemons are growing behind Donna Balzer’s bungalow.
Instead of buying a bag of dull spinach from the grocery store, she can go to her greenhouse and pick pert leaves with a glossy sheen—a sign they’re abundant in minerals. And instead of a bunch of store-bought herbs that will mostly go limp after a few sprigs are used, she can pick what she needs when she needs it.
