Dian Mu Dan

Paeonia delavayi

Native to:
China

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Paeoniaceae
Genus:
Paeonia
Species:
Paeonia delavayi
USDA Symbol:
PADE23

Growth Characteristics

Height:
200 cm
Light Requirements:
Full Sun
Drought Tolerance:
Medium
Bloom Months:
may,jun
Bloom Colors:
red, maroon, yellow
Landscaping Shrub:
Yes

Garden & Ecology Notes

Wildlife Value:
bees
Deer Resistant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
native to forested slopes and open areas

Propagation & Germination

Stratification:
Warm then cold/moist stratification (double dormancy) — 90–180 days
Germination Time:
30–365 days
Notes:
Tree peonies have double dormancy requiring warm stratification followed by cold stratification. Germination can be slow and erratic, often taking one to two years.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: 20°C x 3 months or longer until a 4 cm radicle appears, then 4°C x 3 months, leaf appears while chilled or in next 20°C cycle

Source: Ontario Rock Garden & Hardy Plant Society