Photo by Melody

PlantFiles: Monkshood
Aconitum grossedentatum

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Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Aconitum (a-kon-EYE-tum) (Info)
Species: grossedentatum (gros-den-TAY-tum) (Info)

One member has or wants this plant for trade.

Category:
Perennials

Height:
4-6 ft. (1.2-1.8 m)
6-8 ft. (1.8-2.4 m)

Spacing:
12-15 in. (30-38 cm)
15-18 in. (38-45 cm)
18-24 in. (45-60 cm)

Hardiness:
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)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun
Sun to Partial Shade
Light Shade
Partial to Full Shade
Full Shade

Danger:
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction

Bloom Color:
Medium Blue
Dark Blue
Blue-Violet

Bloom Time:
Late Summer/Early Fall
Mid Fall
Late Fall/Early Winter

Foliage:
Herbaceous
Blue-Green
Smooth-Textured
Leathery-Textured

Other details:
This plant is resistant to deer
Flowers are good for cutting

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

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
Direct sow as soon as the ground can be worked
From seed; direct sow after last frost

Seed Collecting:
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Seed does not store well; sow as soon as possible

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Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral fairfaxbloomer On Sep 8, 2014, fairfaxbloomer from Fairfax, CA wrote:

Highly toxic. Be careful.

Regional...

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

Royal Oak, Michigan



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