That first warm day in late spring, you step outside and catch it before you even see it — a soft, lemony drift that stops you mid-stride. That’s Bartzella (*Paeonia* Itoh hybrid ‘Bartzella’) doing what it does best.
This intersectional peony crosses the dinner-plate blooms of peonies with the cold-hardiness and tidy die-back habit of herbaceous varieties. The result is a plant that earns its place in the border: large, fully double yellow flowers on naturally strong stems that hold themselves upright without staking. Bloom time runs late spring into early summer, with a mature spread of 30–48 inches and a height of 24–36 inches.
Grow Bartzella in full sun to part sun, in rich, well-drained soil with consistent moisture during active growth. It’s hardy in USDA Zones 3–8. Cut stems to the ground after frost each fall.
🍂 Shipping & planting window
Peonies ship in fall (September–November) when fully dormant and bare root.
Fall planting gives roots a full season to establish in warm soil before winter. Cold stratification triggers strong, healthy spring growth and reliable bloom production. Spring-shipped peonies experience root damage during active growth, transplant shock during their bloom cycle, and often lose an entire growing season.
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