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botanical name:
Paeonia rockii
Paeonia rockii © Deeproot Plant Base
common name:  Tree Peony, Chinese Mountain Peony
synonyms:  Paeonia suffruticosa ssp. rockii, Paeonia suffruticosa 'Rock's Variety', Paeonia suffruticosa 'Joseph Rock'
family:  Paeoniaceae
characteristics: shrub, scented/aromatic
height: 1.85m
width: 2.00m
growth rate: medium
growth habit: bushy
leaf colour: dark green
flower colour: white
main season: Spring
aspect: full sun, part shade
conditions: moist soil, sandy soil
preferred soil pH: neutral
minimum temp: -29°C
USDA zone: 5 to 8
Large semi-double, fragrant, white flowers, often tinted pink and with a bold deep maroon blotch at the base of each petal. Late spring or early summer. Foliage is often bronze flushed.

Best in a fertile, moist, well-drained soil with some shelter from cold winds. Probably the most frost hardy of the tree peonies.

From seed.

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