Aconitum, Monkshood, Wolfbane 'Spark's Variety'

Aconitum

Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus
Aconitum (a-kon-EYE-tum)
Synonym
Aconitum henryi
Sun Exposure
Light Shade
Foliage
Herbaceous
Smooth
Height
36-48 in. (90-120 cm)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Blue-Violet
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
Patent Information
Propagation Methods
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Bridgewater, Massachusetts

Manchester, New Hampshire

Poulsbo, Washington

Stanwood, Washington

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Gardener's Notes:

2
positives
0
neutral
1
negative
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B
Cedarhome, WA (Zone 8b) | November 2009 | negative

This plant has not performed well for me. I had it mixed in with a couple other varieties of monkshoods in eastern morning sun, going fo...Read More

G
Bridgewater, MA (Zone 6b) | June 2007 | positive

A carefree and very productive Monkshood. I agree that the form loosens up a bit, but some selective support in tree branches or some st...Read More

H
Quesnel, BC (Zone 4a) | May 2007 | positive

This is a fabulous monkshood. The colour is outstanding. While a bit "loose" in habit it doesn't really need staking or support. Blooms a...Read More

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