Run your fingers along a petal of Jade-Winged Obsidian and you’ll understand why collectors travel across continents for Rockii tree peonies — the blooms unfurl in deep, inky violet with wings that seem to shift in the light, each flower reaching nearly 7 inches across.
You’re receiving a 2-3 year old dormant bareroot plant with 2-3 branches, arriving 10-25 inches tall and ready to settle into your garden before winter. By spring, expect growth to around 3 feet as roots find their footing.
Plant in fertile, well-drained soil with a neutral to slightly alkaline pH, in a spot with partial shade. Water moderately during establishment — evenly moist, never waterlogged, especially through winter. In colder areas, a light layer of mulch protects without smothering. Hardy in USDA zones 4-9.
Rockii tree peonies are long-lived, decades-long garden investments — the kind of plant that outlasts garden trends entirely.
Peonies ship dormant bareroot in fall (September–November). Fall planting lets roots establish in warm soil before cold triggers the strong spring growth that leads to reliable blooms. Local pickup available upon request.
🍂 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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