Tall Bugbane

Actaea elata

Native to:
Canada, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Ranunculaceae
Genus:
Actaea
Species:
Actaea elata
USDA Symbol:
ACEL4

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Forb/herb
Height:
200 cm
Light Requirements:
Part Shade,Shade
Drought Tolerance:
Low
Bloom Months:
may,jun,jul
Bloom Colors:
white

Keystone Species Ranking

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

Garden & Ecology Notes

Wildlife Value:
birds, small mammals
Fall Color:
yellow

Soil Requirements

Soil Type:
rich, well-drained loamy soil
pH:
5.5 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
prefers shaded woodland environments

Propagation & Germination

Stratification:
Cold/moist then warm stratification (double dormancy) — 90–120 days
Germination Time:
30–180 days
Notes:
Seeds exhibit double dormancy requiring warm stratification followed by cold stratification. Germination can be erratic and slow, often taking up to two years.

Pre-treatment: Two weeks exposure to warm temperatures followed by 90 days of cool/moist stratification.

Establishment: This plant is commonly found in Oregon, Washington and the western portion of Canada.

Source: npn.rngr.net

ORGHPS Germination Guide: Seedlings must be grown at less than 20° and can overwinter at -20°, prick out while small, seed is viable for at least 6m

Source: Ontario Rock Garden & Hardy Plant Society