Aconitum, Aconite, Monkshood, Monk's Coule 'Bressingham Spire'


Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Aconitum (a-kon-EYE-tum) (Info)
Cultivar: Bressingham Spire



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Flowers are good for cutting

This plant is attractive to bees, butterflies and/or birds

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Requires consistently moist soil; do not let dry out between waterings

Where to Grow:

Unknown - Tell us


24-36 in. (60-90 cm)


18-24 in. (45-60 cm)


USDA Zone 2a: to -45.5 C (-50 F)

USDA Zone 2b: to -42.7 C (-45 F)

USDA Zone 3a: to -39.9 C (-40 F)

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)

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)

Sun Exposure:

Full Sun

Sun to Partial Shade


All parts of plant are poisonous if ingested

Pollen may cause allergic reaction

Bloom Color:


Bloom Time:

Mid Summer

Late Summer/Early Fall



This plant is resistant to deer



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:

Unknown - Tell us

Propagation Methods:

By dividing rhizomes, tubers, corms or bulbs (including offsets)

From seed; direct sow outdoors in fall

Direct sow as soon as the ground can be worked

From seed; direct sow after last frost

Seed Collecting:

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


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

Oakland, California

Brookfield, Connecticut

Montpelier, Vermont

Mc Lean, Virginia

Olympia, Washington

Gardeners' Notes:


On Oct 30, 2007, ifonly from Brookfield, CT wrote:

Love this plant - it's been in bloom in my garden for weeks, deep blue/purple blooms against cotinus Velvet Cloak, with Hot Lips turtlehead & Becky shasta daisy. Little Lamb hydrangea, sedum Autumn Joy, and a big clump of soft gold mums nearby. It looks wonderful with all the golds of the turning leaves and dusty pinks of the fading flowers. Very tall beside the rock wall around my patio. Full sun, soil on the dry side. Four plants so far, and I want more - I'll try scattering seed once it ripens. What's better than a fall garden in bloom?


On Jul 27, 2007, Mamiesdream from Montpelier, VT (Zone 4b) wrote:

This provides an interesting specimen all growing season. It has deeply serrated leaves and tall spires that do not go unnoticed. In the early fall when little else is left to bloom these put on a display of beautiful purpley blue blossoms. They grow heartily in my New England cottage garden.


On Oct 19, 2006, Veshengo from Faversham,
United Kingdom (Zone 8a) wrote:

Awarded the RHS AGM (Award of Garden Merit)

Bred by Alan Bloom as his nursery at Bressingham, Norfolk, UK.