Kansas Peony
Deep red peonies that bloom for decades once established
About Kansas Peony
Kansas Peony is an award-winning herbaceous perennial prized for its deep red double blooms that appear in late spring. Originally bred in the US and introduced in 1926, this hardy peony thrives in zones 3-8 and can live and bloom for decades once established. Gardeners choose it for cutting, borders, and foundation plantings.
This site covers everything you need to grow Kansas Peony well. You'll find specific guidance on planting depth and location, sun and water requirements, managing common problems, and what to expect through the seasons and years. We also help you understand why these peonies become beloved heirloom plantings passed through generations.
Buy Kansas Peony
Nursery-grown plants shipped in their container, with our planting and care guides to go with them.
From $74.60
Sizes: #2
Shop Kansas PeonyQuick facts
- USDA zones
- 3-8
- Mature height
- 24-30 in (some sources list up to 36 in)
- Mature width
- 24-36 in
- Sun
- full sun (6+ hours); tolerates light afternoon shade in hot southern zones, but flowering
- Water
- moderate; regular watering the first 1-2 years to establish, then moderately drought toler
- Bloom time
- late spring (early-to-midseason bloomer, typically May; timing shifts by 2-4 weeks dependi
- Bloom color
- bright clear red, double 'bomb'-type blooms
- Growth rate
- moderate - reaches full clump size in about 3-4 years, gaining roughly 6-12 in of spread p
- Deer resistance
- generally good/relatively deer resistant
- Plant type
- herbaceous perennial
- Award-winning red double peony bred in the US and introduced in 1926
- Blooms deep red in late spring on an herbaceous perennial clump
- Hardy from USDA zones 3-8
- Can live and bloom for decades once established
- Prefers full sun and well-drained soil; resents being planted too deep
- Relatively deer resistant and low-maintenance once established
- Ants on the buds are normal and harmless
Growing guides
Core guideKansas Peony Care: The Complete Growing Guide
Learn how to grow Kansas Peony: complete care guide covering planting depth, sun, watering, pruning, and solving common problems for 50+ yea
Core guideHow to Plant Kansas Peony for the Best Spring Blooms
Learn the exact depth and timing to plant Kansas Peony for reliable spring blooms. Step-by-step instructions for success in zones 3–8.
Core guideBuying Kansas Peony: What to Look for Before You Order
Buy Kansas Peony with confidence: learn what to look for in bare root and container plants, quality indicators, red flags, and where to find
Plant specificKansas Peony Bloom Time: When and How Long It Flowers
Learn when Kansas Peonies bloom by zone (May timing), how long the flowers last, deep red color details, and seasonal care tips to maximize
Plant specificWhy Isn't My Kansas Peony Blooming? Common Causes and Fixes
Discover why your Kansas Peony isn't blooming and fix common issues like planting depth, sunlight, soil, and disease to restore flower produ
Plant specificKansas Peony vs Karl Rosenfield: How to Tell Them Apart
Kansas Peony and Karl Rosenfield are both stunning red double peonies. Learn their key differences, growing requirements, and which suits yo
Core guideKansas Peony Sun Requirements: Full Sun vs Partial Shade
Kansas Peony needs 6+ hours of full sun for best blooms. Learn to assess light, choose the right spot, and care for plants in partial shade.
Core guideWatering Kansas Peony: How Much and How Often
Learn how to water Kansas Peony correctly. Complete watering guide covers schedule, drought signs, and overwatering prevention.
Core guideBest Soil for Kansas Peony: Drainage, pH and Amendments
Create ideal Kansas Peony soil: the pH, drainage, and amendments this cultivar needs to thrive for decades.
Core guideKansas Peony Hardiness Zones: Where It Grows Best
Kansas Peony hardiness zones 3-8: where to grow, when to plant, cold tolerance, and regional care tips.
Core guideKansas Peony Size: How Big Does It Get and How Fast?
How big does Kansas Peony grow? Learn mature height, width, growth rate, spacing, and timeline from a nursery expert.
Core guideLandscape Ideas for Kansas Peony: Design and Companion Plants
8 landscape design ideas for Kansas Peony, from borders to cutting gardens, plus proven companion plants and spacing.
Kansas Peony questions
Why isn't my Kansas peony blooming?
The most common causes are planting the root crown too deep (eyes should be no more than 1-2 inches below the soil surface), too much shade, or a plant that is still young and hasn't reached blooming maturity (usually 3-4 years).
Do I need to remove the ants from the buds?
No. Ants are attracted to sugary nectar on peony buds and do not harm the plant; they can simply be rinsed off before bringing cut flowers indoors.
When should I divide or transplant a Kansas peony?
Fall is the best time, after foliage has died back, dividing the root clump into sections with 3-5 eyes each.
How long will a Kansas peony live?
Peonies are exceptionally long-lived perennials and can remain productive in the same spot for 50 years or more with minimal care.