SEATTLE — Gardening expert Ciscoe Morris received a box of dahlia tubers from one of his favorite growers. Inside was one of his favorites, Bishop of Llandaf. “This is one of the coolest dahlias ...

Pick a spot with good air circulation and well-drained soil Use a low-nitrogen fertiliser every 3–4 weeks once plants are growing. Too much nitrogen is equal to more leaves, fewer flowers ...