If you’re new to gardening and don’t know what to plant, consider a hydrangea. I’ve been thinking about them as mine are in bloom now in late summer. They’re graceful in form, not difficult to grow, and decorate the garden with profuse, showy flowers. Here are five reasons I love them. They’re easy-to-grow in most U.S. gardens Unlike some shrubs that need just-the-right conditions, hydrangeas are versatile. They’re hardy from zones 2-9 so almost any gardener in the U.S. or even Canada can grow them. They tolerate heavy or sandy…