Peonies are herbaceous perennial plants that are highly prized for their large, showy, and often fragrant flowers. Here are some key points about peonies:

1. Appearance: Peonies typically have large, lush green foliage and produce stunning flowers in a wide range of colors, including white, pink, red, coral, and yellow. The flowers can be single, semi-double, double, or Japanese-form (with visible stamens). They come in various shapes, from bowl-shaped to anemone-like.

2. Size: Peony plants vary in size depending on the variety and growing conditions. They generally range from 2 to 4 feet (60 to 120 cm) in height and spread, with some tree peonies growing taller.

3. Blooming Season: Depending on the variety and climate, peonies typically bloom in late spring to early summer. The bloom period lasts for a few weeks, and individual flowers may last from several days to a week.

4. Sun and Soil Requirements: Peonies prefer full sun to partial shade. They thrive in well-draining soil with good fertility. It's essential to plant them in a location with good air circulation to prevent diseases.

5. Watering and Maintenance: Peonies have relatively low maintenance requirements. They prefer regular watering, especially during dry periods, but they can tolerate some drought once established. Deadheading spent flowers can help promote continued blooming, and removing faded foliage in fall helps prevent disease overwintering.

6. Propagation: Peonies can be propagated by division in early fall when the plants are dormant. This involves carefully digging up the plant and separating the roots into sections, each with at least one healthy bud or "eye."

7. Landscape Use: Peonies are versatile plants that can be used as specimen plants, in borders, mass plantings, or mixed perennial gardens. Their lush foliage provides a beautiful backdrop for other plants, and their stunning flowers add color and interest to the landscape.

Overall, peonies are beloved for their exquisite flowers, easy care, and longevity in the garden. They are considered one of the most beautiful and enduring garden perennials, making them a favorite among gardeners worldwide.