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An excellent plant for full sun or filtered light areas.  If planted in full sun, keep them well watered. They demand ample moisture but not wetness.  Mulch them so moisture is constant.  Keep well-fertilized, they are especially fond of phosphorus.

Common Name: Monkshood
Botanical Name: Aconitum
Type: Perennial (tuberous)
Soil Preference: Prefers well-drained or loamy soil but will grow in moist to wet soils with a neutral pH.  Prefers cool, moist soil
Light Requirements: Full sun, partial sun, partial shade
Attributes: Cut flowers, looks nice in containers, woodland garden accent
Pests: None serious
Diseases: Powdery mildew, stem and crown rot, verticillium wilt, bacterial leaf spot
Good Companion Plants: Japanese Anemone, Blackberry Lily, Blanket Flower, Fountain Grass, Rosemallow, Stonecrop
Care & Tips: Prefers partial shade but will tolerate full sun with ample moisture.  Amend the soil with generous amounts of compost and/or peat moss to provide a light acidity to the soil.   They are also especially fond of Phosphorus.  Plants may be divided in spring or fall, however, they are slow to increase and do not need to be divided often.  Aconitums are resistant to pests and diseases as they are poisonous.  Ingestion of any part of this plant may prove to be fatal.  Keep away from vegetable gardens or where small children play.

Staking is recommended if your Aconitum grows fairly tall. Fertilize with Plant-tone, Flower-tone or a water-soluble fertilizer. 

Planting Instructions:  Perennials
Water & Fertilizer Schedule



This variety listing is for informational purposes only, it is not a catalog. 
To view our catalog or availability, click here


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Aconitum cammarum 'Bicolor'
zones 4-8
Description:  An exciting bicolor monkshood.  Each flower is shaped like a helmet or hood, hence it's common name.  Flowers are pale blue with white streaks and the lower petals are intense blue  Foliage is deeply cut, glossy and dark green.  Blooms mid to late summer.
Bloom Color: Blue
Bloom Time: Mid-late summer
Foliage Color: Green
Height: 36-48"
Spread: 24"

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Thank you to Walters Gardens, Inc for image use


Aconitum 'Blue Lagoon'
zones 4-8
Description:  The perfect aconitum for containers, this short, bright blue selection with handsome dark green foliage stands just about a foot tall. 'Blue Lagoon' is also unique in that the flowers start blooming lower on the stalks for a showier display from top to bottom.
Bloom Color: Blue
Bloom Time: Mid-late summer
Foliage Color: Green
Height: 10-12"
Spread: 8-10"

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Aconitum napellus 'Blue Valley'
zones 4-8
Description:  Dark blue-violet flowers bloom on upright plants with deeply divided foliage. Cut the spent blooms to encourage additional blooming. They will do quite well when planted alongside a pond's edge.
Bloom Color: Violet-Blue
Bloom Time: Mid-late summer
Foliage Color: Green
Height: 24-36"
Spread: 12-24"

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Aconitum 'Stainless Steel'
zones 4-8
Description:  Bushy plants of deep green, divided foliage and large, metallic blue flowers tarnished with a silver sheen.
Bloom Color: Metallic Blue
Bloom Time: Mid-late summer
Foliage Color: Deep green
Height: 36-42"
Spread: 12-24"

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