How to Grow Kelway
Kelway
Paeonia 'Kelway's Glorious' (or Paeonia lactiflora hybrid)
flowerKelway is a stunning double peony cultivar known for its large, fragrant blooms with creamy-white petals often touched with pink or blush tones. This herbaceous peony is a classic garden favorite that has been cherished since its introduction by the renowned Kelway's Nursery in England during the Victorian era. It produces spectacular cut flowers and is long-lived, with individual plants lasting decades in the garden.
When should you plant Kelway in your zone?
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Example Kelway timeline · Pittsburgh, PA (Zone 6b)
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Plant Kelway
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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First Kelway blooms
Mid-to-late summerBefore the first fall frost (≈ Nov 8)
Sample dates for Pittsburgh, PA. Sign up to get exact Kelway dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-8, with best performance in cooler climates (zones 3-6)
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Get my Kelway timeline →Growth Stages
Dormancy
October-MarchPlant appears dead; underground buds (eyes) remain alive in the root system
Keep soil mulched to protect from extreme cold. Do not disturb roots. Provide light winter protection in harsh climates.
Spring Emergence
March-AprilRed or burgundy shoots emerge from the ground and grow rapidly
Remove winter mulch as temperatures warm. Support tall varieties with peony rings or stakes early in the season. Ensure consistent moisture.
Vegetative Growth
April-MayPlant develops compound foliage with glossy leaflets; stems elongate and harden
Install support structures if not done in spring. Remove any weak or diseased stems. Thin buds for larger blooms if desired (remove side buds, keeping only terminal bud).
Flowering
Late May-June (4-6 weeks total)Large double blooms with creamy-white petals (often with pink blush) open in succession over 2-3 weeks; flowers are highly fragrant
Deadhead spent flowers to encourage longer bloom time. Stake or tie plants to prevent sprawling from heavy blooms. Cut stems for arrangements in early morning.
Post-Bloom & Senescence
June-OctoberFoliage remains attractive through summer and fall; plant begins accumulating energy reserves in root system for next year
Continue watering regularly. Do not cut back foliage until hard frost. Apply low-nitrogen fertilizer in late summer. Leave stems standing for winter protection.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
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Prune and remove infested stems; apply dormant oil in late winter; monitor for crawlers in early summer
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Hand-pick early morning; use row covers on new foliage; apply neem oil if infestation is severe
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Improve air circulation; remove affected buds/flowers; avoid overhead watering; apply fungicide if severe
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Generally beneficial; they protect peonies from other pests. Do not treat unless they cause problems. Ants farm aphids occasionally.
Uses
Peony petals for tea & garnish
CulinaryThe petals of ornamental peonies like Kelway can be dried for herbal tea with a delicate, subtly sweet flavor and are used as elegant garnishes for desserts and specialty dishes. [source]
Traditional herbal remedy
MedicinalIn traditional Chinese medicine and European herbalism, peony root (Radix Paeoniae) has been used for centuries to address menstrual irregularities, inflammation, and nervous tension, though scientific evidence is limited. [source]
Exceptional cut flower
CraftKelway peonies are prized by florists for wedding arrangements, formal bouquets, and floral design due to their large, romantic blooms, longevity in water, and subtle fragrance. [source]
Pollinator support
WildlifePeony flowers attract bees, beetles, and other beneficial pollinators, supporting garden ecosystem health and providing early-season forage for insects emerging from winter dormancy. [source]
Fragrance & garden presence
HouseholdThe sweet, romantic fragrance of Kelway peonies perfumes the entire garden in late spring and complements any landscape design with their lush, full blooms and attractive foliage throughout the season. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Cut flowers in early morning when buds are fully colored but not yet open (or slightly open). Cut stems at an angle with a sharp knife, removing at least 2-3 leaves on the stem to ensure plant vigor. Kelway peonies are exceptional cut flowers and can last 1-2 weeks in a vase. Do not harvest more than one-third of the stems per year from mature plants.
Fun Facts
- 🌱 Kelway peonies were developed by the legendary Kelway's Nursery in Langport, Somerset, England—a family-run business established in 1851 that is still operating today and remains one of the world's premier sources for peonies.
- 🌱 Peonies can live for over 100 years and are often passed down through families as heirloom plants; some specimens in gardens have bloomed continuously for multiple generations.
- 🌱 The large, showy blooms of peonies actually require ants! Ants farm aphids on peony buds, but the peonies also produce a sweet, sticky substance that attracts ants—the ants then protect the buds from other pests, making it a beneficial relationship.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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