Northern Blue Monkshood
Aconitum noveboracense

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Aconitum (a-kon-EYE-tum) (Info)
Species: noveboracense (no-vee-bor-uh-SEN-see) (Info)

Category:

Herbs

Perennials

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)

Sun Exposure:

Full Shade

Danger:

All parts of plant are poisonous if ingested

Bloom Color:

Medium Blue

Bloom Time:

Mid Fall

Foliage:

Herbaceous

Smooth-Textured

Shiny/Glossy-Textured

Other details:

Drought-tolerant; suitable for xeriscaping

Self-sows freely; deadhead if you do not want volunteer seedlings next season

This plant is resistant to deer

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

Seed Collecting:

Allow pods to dry on plant; break open to collect seeds

Regional

This plant has been said to grow in the following regions:

,

Foxboro, Massachusetts

Manchester, New Hampshire

Gardeners' Notes:

0
positives
3
neutrals
0
negatives
RatingContent
Neutral

On Aug 26, 2005, flowercrazy39 from Manchester, NH wrote:

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

Neutral

On May 24, 2003, Nookie wrote:

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 the shade, as with any sun exposure with any plants. I transplant lots of plants from the woods, jack-in-the-pulpits, ladyslippers,pink and white, and maiden hair ferns. They are beautiful in my garden and I protect them highly. The deer do not bother them

Neutral

On Aug 30, 2002, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

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