Run your fingers through the air near a blooming Lavender Whiff and you’ll catch something rare — a fragrance so delicate it seems to drift on the breeze before the flower even comes fully into view. This Rockii Tree Peony arrives as a dormant bareroot plant, 2–3 years old with 2–3 established branches, shipped at 10–25 inches tall each fall when the timing is exactly right for long-term success.
Plant it in fertile, well-drained soil with neutral to slightly alkaline pH, in a spot with partial shade and moderate, even moisture during establishment. Hardy in USDA zones 4–9, it settles in beautifully over winter and emerges each spring reaching around 3 feet tall, eventually producing those extraordinary blooms — up to 6.7 inches across — in soft lavender tones that feel almost painterly.
In colder areas, a light layer of mulch after planting protects young roots. Avoid waterlogged soil in winter. Fall shipping runs September through November — the window when bareroot tree peonies truly thrive.
🍂 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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