Hyacinth-Flower Clematis

Clematis heracleifolia

Native to:
China, Korea

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ranunculaceae
Genus:
Clematis
Species:
Clematis heracleifolia
USDA Symbol:
CLHE5

Growth Characteristics

Height:
100 cm
Light Requirements:
Full Sun,Part Shade
Drought Tolerance:
Medium
Bloom Months:
aug,sep,oct
Bloom Colors:
blue, lavender

Keystone Species Ranking

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

Garden & Ecology Notes

Wildlife Value:
bees, butterflies
Deer Resistant:
Yes
Fragrant:
Yes

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
excellent drainage required
Moisture:
consistently moist
Notes:
Prefers fertile soil with organic matter

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–90 days
Germination Time:
30–180 days
Notes:
Germination can be slow and erratic; benefits from cold stratification and light exposure.

The above propagation data sourced from Claude AI

ORGHPS Germination Guide: Sow @ 4C for 3 months, then place @ 20C for 3 months. Tails on pulsatilla/clematis: leaving on has no effect.

Source: Ontario Rock Garden & Hardy Plant Society