Description

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(M) KS5

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Monkshood
Botanical Name: Aconitum napellus
Type: Hardy Perennial

Monkshood, also known as Wolf’s Bane or Aconite, is a dramatic, spire-forming perennial prized for its unique, hooded deep violet-blue flowers. Blooming in mid to late summer, these tall and elegant spikes bring height and rich colour to shady borders, woodland gardens, and cottage-style plantings. Though beautiful, all parts of the plant are highly toxic, so handle with care and plant away from children or pets.

Plant Details

Type: Hardy perennial
Height: 70–80 cm
Spread: 40–50 cm
Flowers: July – September
Position: Partial shade (tolerates full sun in cool climates); moist, well-drained soil

Growing Information

Sow: February - March indoors, plant out April - June
Germination: Slow and erratic – may take weeks or months
Tip: Prefers cool, damp soil and dislikes disturbance
Spacing: 45–60 cm apart
Care: Cut back after flowering; mulch in spring to retain moisture

Why You’ll Love It

Deep, striking hood-shaped flowers – a true garden standout
Excellent for adding height and vertical structure
Thrives in cooler, shaded spots where other perennials struggle
Long-lasting blooms that make bold cut flowers (with caution!)

Caution
All parts of Monkshood are toxic if ingested, and sap can be absorbed through the skin. Always wear gloves when handling and avoid planting in areas accessed by pets or children.

Top Tip
Plant among ferns or hostas to highlight its dramatic flower spikes and keep the soil cool and moist. Do not divide too frequently – Monkshood dislikes root disturbance.

Perfect For

Shady borders and woodland gardens
Cottage-style plantings
Dramatic back-of-border displays
Cool-climate perennial beds

Hashtags
#Monkshood #AconitumNapellus #WolfsBane #PoisonousBeauty #ShadeGardenPlants #TallPerennials #CottageGardenStyle #LateSummerFlowers #MoistLovingPlants #GardenWithCare