Photo by Melody

PlantFiles: Aconite, Monkshood, Monk's Coule, Helmet Flower, Cat's Tail
Aconitum napellus 'Album'

Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Aconitum (a-kon-EYE-tum) (Info)
Species: napellus (nap-ELL-us) (Info)
Cultivar: Album
Additional cultivar information: (aka Albidum, Grandiflorum Album)

Synonym:Aconitum pyramidale
Synonym:Aconitum napellus subsp. pyramidale

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2 members have or want this plant for trade.

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36-48 in. (90-120 cm)

15-18 in. (38-45 cm)

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:
Light Shade

All parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Mid Summer
Late Summer/Early Fall


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

Soil pH requirements:
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)

Patent Information:
Unknown - Tell us

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

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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to view:

By Veshengo
Thumbnail #1 of Aconitum napellus by Veshengo

By Veshengo
Thumbnail #2 of Aconitum napellus by Veshengo

By narmaj
Thumbnail #3 of Aconitum napellus by narmaj


1 positive
1 neutral
No negatives

Gardeners' Notes:

Positive narmaj On Mar 10, 2014, narmaj from Deventer
Netherlands (Zone 8a) wrote:

Mine grows in deep shade, and the flowers light up in the darkness. It is early blooming in July-August whereas the blue ones bloom in Sept-Oct. The snails leave it alone for a while, which is great in my snaily north garden.
I planted it in 2011 and it forms nice clumps and grows to about 6 ft.

Neutral saya On Mar 8, 2005, saya from Heerlen
Netherlands (Zone 8b) wrote:

White blooming and pretty looking that I cannot give the best growing conditions in my garden. I 've planted it some near a small white Syringa vulgaris tree to give it a little shade but it dislikes its roots. Just as A. napellus, the ordinary dark blue one, it tends to flop without support.
The blooms get very heavy ...special after a summers' rain and when it starts to set seeds.

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