Hydrangea petiolaris

Hydrangea petiolaris

Native to:
Japan | Korea | Kuril Is. | Russia

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Hydrangeaceae
Genus:
Hydrangea
Species:
Hydrangea petiolaris

Growth Characteristics

Growth Habit:
Vine
Height:
1524 cm
Drought Tolerance:
Low
Bloom Colors:
white

Keystone Species Ranking

Caterpillar Keystone:
★★☆☆☆ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:
bees, butterflies

Source: DeepSeek deepseek-chat

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
30–90 days
Notes:
Seeds benefit from cold stratification for 1-2 months to break dormancy.

Source: DeepSeek deepseek-chat

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires light / surface sow (fine seed). | GA3 improves germination.

Source: Ontario Rock Garden & Hardy Plant Society