Busting myth #3: Shrubby cinquefoil (Potentilla fruticosa) is an easy-to-grow shrub native to Canada and the norther U.S. In summer, it’s covered in small, bright yellow flowers. It’s well-behaved nature, growing only to 4 or 5 feet in height, makes it a good option as a hedge, a shrub border or as a foundation planting.