When the first huge peony unfurls into a flounce of petals, you want to touch it, wear it, and live somewhere inside that magnificent bloom. The perfume, lifted by late-spring air, can't be inhaled deeply enough. You hope it will last forever.

Such giddiness is a springtime ritual in the Upper South. There, peonies become large, shrubby plants festooned with flowers. Divided and passed along for generations, peonies are a long-lived legacy. But move them to the warmer Middle and Lower South, and they're a challenge.

Peonies need cold winter weather to flourish, and without sufficient cooling, few flowerbuds are produced. Greg Jones, with Gilbert H. Wild and Son in Sarcoxie, Missouri, is an expert on their cultivation. "We've found that peonies need about three to four weeks of cold--around 32 degrees. But every variety has a different cooling requirement," he says.

A herbaceous perennial, peony (Paeonia lactiflora) has flowers and foliage that emerge from large buds or "eyes" on tuberous roots. In the Upper and Middle South, the eye should be covered by an inch of soil. But in the Lower South, place it barely beneath the surface. "You want the eyes as close to the top of the soil line as you can get, so the plant can benefit from cool winter temperatures," Greg says.

Avoid mulching peonies, because this insulates the roots and prevents sufficient cooling.

Surefire Success
Peonies are considered potentially poor performers in the Middle and Lower South, but there are secrets for helping them thrive. "Location is a big part of how well you'll do with peonies," says Rick Berry with Goodness Grows in Lexington, Georgia. "Here, we recommend partial shade, preferably with protection from afternoon sun." Peonies grown in full sun often suffer leaf scorch by midsummer. The plants go dormant early, preventing them from building up food reserves. This reduces flowering the next year. In filtered light, however, peony foliage continues growing into late summer or early fall, storing energy for the following year's blooms.

Peonies do not require fertilizer when planted in good soil. "If you consider the beautiful ones you see in cemeteries, plants that have been there 30 years with virtually no attention, you realize they do just fine without supplemental feeding," Greg says. However, in many parts of the South, gardeners are faced with heavy, clay-based soil, which lacks the necessary nutrition. In these areas, apply Holland Bulb Booster after bloom, following the directions to prevent overfeeding.

Soil preparation is important--peonies falter in wet conditions. "They don't want to be in soil that holds moisture," Greg says. So dig a large, wide hole and amend the soil with leaf mold or soil conditioner, which is available at garden shops. To plant, mound the improved soil inside the hole. Then place the roots with the eyes just below the soil surface, facing up. This ensures adequate drainage and aids winter cooling.