Aconitum Species, Northern Blue Monkshood

Aconitumnoveboracense

Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus
Aconitum (a-kon-EYE-tum)
Species
noveboracense (no-vee-bor-uh-SEN-see)
Synonym
Sun Exposure
Full Shade
Foliage
Herbaceous
This plant is resistant to deer
Smooth
Textured
Height
4-6 ft. (1.2-1.8 m)
Spacing
15-18 in. (38-45 cm)
Hardiness
USDA Zone 3b: to -37.2 °C (-35 °F)
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)
Danger
All parts of plant are poisonous if ingested
Bloom Color
Dark Blue
Bloom Time
Mid Fall
Other Details
Category
Herbs
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

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

Foxboro, Massachusetts

Manchester, New Hampshire

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Gardener's Notes:

0
positive
3
neutrals
0
negative
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F
Manchester, NH | August 2005 | neutral

Very nice blooms but can get very top-heavy if not supported.

N
N
| May 2003 | neutral

This plant grows wild in the woods and can be dug and trans-planted in your yard. I have found if you find it in the shade, plant it in t...Read More

S
Oklahoma City, OK (Zone 7a) | August 2002 | neutral

This plant is endangered. US Fish and Wildlife Service Division of Endangered Species. 1999. Endangered and Threatened Plants

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