Peony plants are available through specialty online nurseries, local garden centers, and big-box home improvement stores, but where you buy and what you inspect before purchasing can make the difference between a plant that thrives for decades and one that struggles from the start. Most peonies are sold as bare-root divisions in fall, and the quality of those roots, along with a cultivar suited to your climate, matters far more than brand name or price tag.
Where Peony Plants Are Actually Sold
You have several options when shopping for peonies, and each comes with trade-offs. Specialty peony nurseries, most of which sell online and ship bare-root divisions in autumn, tend to carry the widest variety of cultivars and are more likely to sell healthy, properly sized divisions. These nurseries grow peonies as their primary crop, so their stock is generally dug and divided with care. Names you will see referenced in gardening forums and plant societies tend to be family-run operations that have grown peonies for generations.
Local garden centers and independent nurseries often carry potted peonies in spring, usually already showing foliage or even buds. The advantage is that you can physically inspect the plant before buying. The disadvantage is a much narrower selection, typically limited to a handful of widely available cultivars. Big-box stores like Home Depot and Lowe’s stock peonies seasonally, usually as packaged bare roots in late winter or potted plants in spring. These can be perfectly fine, but the roots have sometimes been stored in less-than-ideal conditions and you need to be more careful about what you are getting.
Farmers’ markets and plant swaps are another route, especially if you are looking for heirloom varieties that have been growing in a specific region for years. Divisions from an established local clump already adapted to your climate can establish quickly. The catch is that you are trusting the seller’s identification of the cultivar, which is not always reliable.
Bare-Root Divisions vs Potted Plants
Most serious peony growers recommend buying bare-root divisions, and fall is the ideal time to plant them. A bare-root peony is a chunk of the plant’s root system with several buds, called “eyes,” visible on the crown. When you buy bare root, you can see exactly what you are getting: the size and condition of the roots, the number of eyes, and whether there are signs of rot or damage.
Potted peonies, typically sold in spring when they are already growing, give you the advantage of instant gratification and the ability to see the foliage. But they cost more, and the root system is hidden inside the pot. A potted peony that looks lush above the soil line might have a root system that has been cramped, circling, or sitting in waterlogged mix. If you go the potted route, check that the plant is not wobbling loosely in the pot (a sign of a recent, possibly careless transplant) and that the soil surface shows no fuzzy gray mold.
Timing matters because peonies establish best when planted during their natural dormancy. Fall planting lets the roots settle into the soil and experience winter cold before pushing growth in spring. Spring-planted potted peonies can work, but they sometimes sulk through their first summer as they try to grow roots and foliage simultaneously in warming soil.
What Healthy Roots Should Look Like
When you open a bare-root peony package, you want to see firm, fleshy roots that are tan to light brown on the outside. They should feel solid, not spongy, shriveled, or mushy. A slight give when you press a root is normal; a root that collapses under gentle pressure is rotting. Healthy roots often have a faintly sweet, earthy smell. A sour or fermented odor suggests decay has started.
The eyes, the reddish or pinkish buds at the top of the root crown, are what will become next year’s stems. A good division has three to five well-developed eyes. Fewer than three eyes means the plant will take longer to establish and may not bloom for several years. More than five is a bonus, though very large divisions do not necessarily outperform moderate ones in the long run because the root-to-eye ratio matters for energy balance.
Watch for dark, water-soaked spots on the roots, which can indicate fungal infection. Small nicks or clean cuts from the division process are normal and heal quickly in the ground. What you do not want are extensive soft areas, black discoloration spreading along the root, or a web of fine white mold. If part of a root is soft, you can sometimes trim away the damaged section with a clean knife and still plant the healthy portion, as long as enough sound tissue and eyes remain.
Matching a Cultivar to Your Climate
Peonies need a period of winter cold to break dormancy and bloom properly, and this is one of the most important factors to consider before you buy. Research on the chilling needs of peony cultivars has shown that plants forced into growth without any cold exposure produce no shoots or flowers at all. As chilling duration and cold intensity increase, the proportion of plants that sprout and the number of flowers they produce go up significantly.
What surprised researchers is that chilling requirements vary considerably among cultivars. In trials testing three popular varieties at different cold regimes, the interspecific hybrid ‘Coral Sunset’ (an early bloomer) actually needed the most chilling to sprout consistently, while the very late-flowering ‘Sarah Bernhardt’ needed the least.1Scientia Horticulturae. Chilling requirements of Paeonia cultivars That runs counter to what many gardeners assume: that early-flowering types would be less demanding. If you live in a mild-winter area (roughly USDA Zones 8 and above), choosing cultivars with lower chilling requirements is essential, and sellers who specialize in peonies for warm climates can steer you toward appropriate varieties.
Gardeners in cold climates (Zones 3 through 5) rarely have trouble meeting chilling needs and can grow nearly any herbaceous peony. The trickier zones are 7 and 8, where winters are mild enough that some cultivars do not receive adequate cold. In those areas, intersectional (Itoh) peonies and certain tree peony species tend to perform better than some herbaceous types, though results still vary by cultivar.
Soil Preferences Worth Knowing Before You Buy
Before you bring a peony home, it helps to know what your soil looks like, because peonies have definite preferences that affect whether a purchase thrives or limps along. Good drainage is non-negotiable. Peonies will tolerate a range of soil textures, from sandy loam to clay, as long as water does not pool around the crown for extended periods. Sitting in waterlogged soil invites root rot faster than almost any other growing condition.
Soil pH matters too, and research on herbaceous peonies has shown that both strongly acidic and strongly alkaline conditions cause problems. In acidic soils, plants can suffer from toxicity and nutrient lockout. In alkaline soils, trace element availability drops.2Scientia Horticulturae. Effects of pH in irrigation water on plant growth and flower quality in herbaceous peony (Paeonia lactiflora Pall.) The sweet spot for most peonies is a slightly acidic to neutral pH, roughly 6.5 to 7.0. A basic soil test from your local extension office costs very little and tells you whether you need to amend before planting. If your soil is heavily acidic clay or very alkaline, you may want to consider raised beds with amended soil rather than fighting the native ground.
This is worth thinking about at the purchasing stage because a peony planted in poor drainage or extreme pH will decline slowly, and the gardener often blames the plant or the seller rather than the site. Knowing your conditions narrows your shopping: if you have heavy, wet clay, for instance, tree peonies and some intersectional types handle those conditions somewhat better than many herbaceous cultivars.
Inspecting for Fungal Disease
Peonies are affected by a wider range of fungal pathogens than most gardeners realize. A survey of diseased peony tissue from across a dozen U.S. states identified ten different fungal or oomycete genera, including five that had never previously been reported on peonies in the country.3Plant Health Progress. Survey Reveals a Broad Range of Fungal Pathogens and an Oomycete on Peonies in the United States The best-known peony disease is botrytis blight, which causes stems to blacken and collapse and buds to turn brown and fail to open. But the research makes clear that botrytis is not the only fungal concern; anthracnose-type fungi, stem canker organisms, and various rot pathogens also show up in commercial and garden settings.
When inspecting a plant before purchase, whether potted at a garden center or bare root from a mail-order box, look for these red flags:
- Blackened stems: Stems that are dark and water-soaked at the base suggest botrytis or another stem-rotting fungus.
- Spotted foliage: Distinct brown or purple spots with concentric rings on leaves can indicate anthracnose or other leaf-spot fungi.
- Soft crown tissue: The crown (where roots meet stems) should be firm. Soft, discolored crown tissue points to rot that will likely spread.
- Gray fuzz: Visible fuzzy gray mold on any part of the plant is a classic sign of botrytis and means the plant has been stored in conditions that encouraged disease.
One fungal problem you cannot see at purchase involves root pathogens that only show symptoms once the plant is growing. This is part of why sourcing from reputable growers who practice good field hygiene matters. Nurseries that rotate their peony fields, remove and destroy infected plant material, and avoid overwatering produce cleaner stock.
Below-Ground Pests You Cannot Easily Spot
Root-knot nematodes are microscopic roundworms that parasitize peony roots and can travel with purchased plants. Research documented the nematode Meloidogyne hapla infesting peony roots, where it causes spherical galls along the root axis, each containing egg masses averaging 320 to 350 eggs.4Journal of Nematology. Parasitism of the root-knot nematode Meloidogyne hapla on peony in northern Italy The galls are relatively small, only about two to three times the diameter of healthy root tissue, which means they can be easy to miss on a quick inspection of bare roots.
If you are examining bare-root divisions, run your fingers along the roots and feel for small, bead-like swellings. They will feel firm, not soft like rot, and they are usually scattered along the length of the root rather than concentrated at the tips. A few tiny bumps can be natural root structures, but a pattern of round, uniform swellings spaced along the roots is suspicious. Plants with heavy nematode infestations grow poorly, produce fewer stems, and decline over time. Introducing nematode-infested stock into your garden also puts other susceptible plants at risk.
You cannot treat nematode-infested roots after purchase in any practical way for a home gardener. The best defense is buying from nurseries with clean growing conditions and inspecting bare roots carefully before planting. If you receive a bare-root division that shows galling, contact the seller. Reputable nurseries will replace infested stock.
Viruses That Travel with Plant Material
One category of peony health problems is almost completely invisible at the point of sale: viral infections. Peonies can carry viruses that spread through vegetative propagation, meaning every division taken from an infected mother plant carries the virus too. Research on a peony germplasm collection found infections with tobacco rattle virus (TRV) and cycas necrotic stunt virus (CNSV), with some plants harboring both viruses simultaneously. Plants co-infected with both showed more severe symptoms than those carrying only one, but critically, some infected plants showed no symptoms at all.5Viruses. Co-Infection of Tobacco Rattle and Cycas Necrotic Stunt Viruses in Paeonia lactiflora: Detection Strategies, Potential Origins of Infection, and Implications for Paeonia Germplasm Conservation
That last point is the worrying one for buyers. A peony division can look perfectly healthy, have firm roots and plump eyes, pass every visual inspection, and still be carrying a virus that will cause problems later or spread to other plants in your garden. Tobacco rattle virus, for instance, is also transmitted by soil-dwelling nematodes, so an infected plant can become a source of infection for nearby susceptible species.
There is no practical way for a home gardener to test for viruses before buying. Your protection is indirect: buy from nurseries that maintain clean stock programs, avoid suspiciously cheap divisions from unknown sources, and be wary of plants showing unusual ring patterns, mottling, or streaking on their leaves once growing. If a peony develops persistent, strange-looking foliage patterns that do not match any fungal disease, viral infection is a possibility. Removing and destroying the plant is the only real option at that point.
The Mislabeling Problem
Getting the wrong cultivar is more common than you might expect. Peony cultivars number in the thousands, and many look similar enough in their dormant bare-root state that telling them apart is impossible without genetic testing. Even among growing plants, some cultivars are difficult to distinguish visually until they bloom, and some bloom look similar enough that confusion persists even then.
Researchers have developed DNA fingerprinting tools that can definitively identify peony cultivars using small sets of genetic markers. One recent effort built a fingerprint database covering nearly 700 tree peony cultivars, finding that a set of just 30 carefully chosen markers could uniquely distinguish every single cultivar tested.6Industrial Crops and Products. Development of KASP markers for DNA fingerprinting, population structure analysis, and core collection construction in tree peony The researchers even generated QR codes for rapid field-level identification. Tools like these are primarily designed for nursery professionals and germplasm conservation efforts, not home gardeners, but their existence highlights how widespread the identification problem is: you do not develop a 700-cultivar DNA database unless mislabeling is a real and persistent issue in the trade.
For the home buyer, the practical takeaway is straightforward. Buy from sellers who grow and divide their own named stock rather than middlemen who purchase bulk roots and relabel them. Specialty peony nurseries stake their reputation on cultivar accuracy and are far more likely to deliver what the label says. If you order a specific coral-colored intersectional hybrid and receive a generic pink lactiflora, a good nursery will make it right, but you may not discover the mistake until the plant blooms, which could be a year or two after planting.
What “Blooming Size” and “Eye Count” Actually Mean
Peony sellers use terminology that can confuse first-time buyers. “Blooming size” divisions are typically three- to five-eye roots from established clumps, large enough to potentially produce a flower in their first or second spring. “Standard” divisions usually have three eyes and are the most commonly sold size. “Value” or “starter” divisions might have only one or two eyes and will take longer to reach blooming maturity, sometimes three to four years.
The eye count is not just a size measure; it reflects how much stored energy the division carries. Each eye represents a potential stem, and the root mass attached to those eyes provides the carbohydrate reserves that fuel early growth. A one-eye division is not defective, but it is working with a smaller energy bank. If you are patient and want to save money, small divisions are fine. If you want blooms sooner, pay for larger ones.
Some sellers offer “deluxe” or “premium” divisions with six or more eyes. These tend to establish quickly and may bloom the first spring, but they are not necessarily a better long-term investment. Very large divisions sometimes produce a flush of growth in year one and then stall as the plant redirects energy into building a root system proportional to its top growth. A well-grown three- to five-eye division often catches up within a couple of seasons.
Tree Peonies, Herbaceous Peonies, and Intersectional Hybrids
When shopping, you will encounter three broad categories, and understanding the differences affects both where you buy and what you should expect. Herbaceous peonies (the most common type) die back to the ground each winter and regrow from their root crown in spring. They are the easiest to find, the most affordable, and the most forgiving for beginners. Most bare-root divisions sold online and in stores are herbaceous types.
Tree peonies are woody shrubs that keep their branching structure year-round, like a small deciduous bush. They are more expensive, slower to establish, and less widely available. Grafted tree peonies (where a named cultivar is grafted onto herbaceous peony rootstock) are cheaper but can be tricky: if the graft union is not planted deeply enough, the rootstock may send up its own growth and outcompete the grafted cultivar. Own-root tree peonies, propagated by division or layering, cost more but avoid the grafting complications. Specialty nurseries are usually the only reliable source for named, own-root tree peonies.
Intersectional hybrids, commonly called Itoh peonies after the breeder who first created them, are crosses between herbaceous and tree peonies. They die back to the ground like herbaceous types but produce the large, often unusually colored flowers associated with tree peonies. Itohs tend to be the most expensive category, with popular cultivars running two to four times the price of a comparable herbaceous variety. They are increasingly available through mainstream nurseries, though the widest selection is still found at specialty growers. Itohs are often recommended for warmer climates because many tolerate milder winters better than some herbaceous cultivars.
When Cheap Peonies Are a Bad Deal
It is tempting to grab a three-dollar bare-root peony from a clearance bin, but the lowest-priced options carry the highest risk of the problems discussed above: undersized divisions with one or two eyes, roots that have dried out or started to rot in storage, unknown or mislabeled cultivars, and potential disease or nematode issues from large-scale production operations that prioritize volume over plant health.
That does not mean expensive always equals good. Price in the peony world is driven partly by cultivar rarity and partly by the seller’s reputation and overhead. A thirty-dollar herbaceous peony from a well-regarded specialty nursery is a solid investment. A thirty-dollar herbaceous peony from a lifestyle brand with beautiful packaging and no growing operation of its own might just be a relabeled commodity root with a markup for marketing. Look for sellers who can tell you where their plants are grown, how their stock is maintained, and what their guarantee covers. Nurseries that propagate their own stock and offer a replacement policy for mislabeled or dead-on-arrival plants are the safest bet, regardless of whether they are the cheapest or the most expensive option on the market.