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Aconitum Species, Monkshood

Aconitumjaponicum subsp. napiforme

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Aconitum japonicum subsp. napiforme by GartenGrl
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Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Info
Genus
Aconitum (a-kon-EYE-tum)
Info
Synonym
Aconitum napiforme
Sun Exposure
Sun to Partial Shade
Light Shade
Foliage
Herbaceous
This plant is resistant to deer
Height
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)
Spacing

Unknown - Tell us

Hardiness
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)
Danger
All parts of plant are poisonous if ingested
Handling plant may cause skin irritation or allergic reaction
Bloom Color
Dark Blue
Bloom Time
Late Summer/Early Fall
Other Details
Category
Perennials
Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Foliage Color

Unknown - Tell us

Where to Grow

Unknown - Tell us

Bloom Characteristics

Unknown - Tell us

Bloom Size

Unknown - Tell us

Other details

Unknown - Tell us

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
Non-patented
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
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
Allow seedheads to dry on plants; remove and collect seeds
Wear gloves to protect hands when handling seeds
Properly cleaned, seed can be successfully stored
Regional

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

Ann Arbor, Michigan

Adams, New York

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saya
(Zone 8b) | July 2006 | neutral

A monkshood growing on wooded, damp hill sides, in the Odaesan area of South Korea. Plants 30-50cm tall, with congested terminal racemes ...Read More

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