When we first carved out a garden from the surrounding trees, we knew we couldn’t grow a sun-loving shrub like the blueberry. Blueberries needed a little more warmth and light than we could provide, so we researched cold-hardy berries like the honeyberry, seaberry, and lignonberry, and planted a 30 ft row of raspberries and a bed of strawberries. After a summer of watching the sun climb over the garden for at least 8 hours, we changed our minds. That didn’t take long. In fall we snapped up three plants on sale from a local nursery, then somehow ended up with…