Peony flowers are large and fragrant, often blooming in early June along the Front Range. Early, mid-season and late blooming cultivars are available. In autumn, the foliage often takes on a reddish-maroon color. The six-inch diameter blooms come in many colors including white, pink, red, maroon, yellow and bicolor. These groups are distinguished by the number of petals and the extent to which the stamens are petal-like.
Peonies do best in full sun or in light shade.
They prefer rich, loamy, well-drained soil but will tolerate and bloom in heavier clay soils. Plant peonies about four feet apart due to their large mature size. Stake peonies early in the growing season since the flowers are very heavy and hold water, which causes them to flop over. Fertilize in the spring and mulch in the winter for best growth. Peonies live for many years in a landscape and for optimal flowering should be placed in permanent locations.