A must-have for the garden or landscape, peony bushes feature fragrant, fluffy flowers that are perfect for cutting and very ornamental foliage that stays attractive throughout the growing season. These sun-loving, deer-resistant perennials are loved by generations of gardeners. Often growing up to 3 ft. tall, peony plants burst into bloom in late spring to early summer. They can be planted as accent plants in the garden, grown as foundation plantings, planted along a walkway and used to create a low-growing, flowering hedge. Most peonies grow in zones 3-8. When selecting peonies to grow in the garden, consider their mature height and spread, bloom time and flower form and color.