Aconitum columbianum

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Aconitum columbianum Nutt.

Ranunculaceae

Life form: perennial

Exposure: half shade   4

Moisture: moist

Soil: loam - Soil: sandy loam - Soil: gritty loam - Soil: clay - Soil: sandy clay - Soil: loamy clay

Arrangement: alternate
Leaves: decidious

Shape: not specified

Division: not specified

Shape: not specified
Fruit: follicle

105C / 00399c 

Inflorescence: not specified

Petals: not specified
Habit: not specified

Growth form: stemless

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Ranunculopsida
Subclassis:
Ranunculidae
Superordo:
Ranunculanae
Ordo:
Ranunculales

Aconitum columbianum is a perennial.

Naming

Aconitum columbianum was described by Thomas Nuttall. The name is considered as validly published.

Taxonomy

Aconitum columbianum is a species in the genus Aconitum which contains approximately 383 to 521 species and belongs to the family of the Ranunculaceae (Buttercup Family). The type species of the genus is Aconitum napellus.

Characteristics

Growth

The perennials reach heights of 1,5 to 2 metres, the main growing season is in spring and summer. They have a erect habit.

Leaves

Aconitum columbianum is deciduous. The dark-green leaves are alternate.

Flowers and Fruits

Aconitum columbianum produces showy blue flowers from May to July.

The perennials produce black follicles in summer.

Root System

Distribution

Cultivation

The perennials prefer a half-shady situation on moist soil. They prefer loamy, sandy-loamy, gritty-loamy, clay, sandy clay or loamy clay soil with a pH between 5,4 and 7,2. The plants need a soil depth of at least 25 centimetres for good growth. They tolerate temperatures down to -35°C (USDA zone 4) and need a frost-free period of at least 16 weeks.

Tolerance of special soil conditions

  • none: soil salinity
  • low: drought
  • medium: anaerobic soil, calcareous soil

Uses

The recommended planting distance is 2 to 2,4 metres.

Maintenance and Propagation

Propagate by sowing.

Cultivars

Poisonousness

Aconitum columbianum is moderately toxic.

Aeskulap  Please read the health issues note

Pests and Diseases

Literature

  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
  • Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.

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