Carmichael's monk's hood Aconitum carmichaelii 'Arendsii' 5-10 pot P9

Size: Potmaat leidend

5-10cm

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Pot 9x9 cm (P9)

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Temporarily sold out

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Benefits according to our specialist

Plantable year-round
Low maintenance
Fast-growing
Toxic

Plant features
Description
Planting and care
Packaging and shipping

Genus
Aconitum (view all varieties)

Root type
Pot

Pot size
9x9 cm (P9)

Flowering months
August, September, October

Leaf colour
Blue, Purple

Possibilities
Border, Group planting

Soil type
All soil types, well-drained

Positioning
Semi-shade

Winter hardiness
-23,3°C / -20,6°C, USDA zone 6a

Fruit-bearing plants
No

Water needs
Average water

Number of plants per m²
9

Evergreen plants
No

Leaf colour
Green

Fragrant plants
No

Growth habit
Upright growth habit

Height at time of delivery excluding pot/clod
5-10

Mature height (cm)
100

Art. no.
1000040

Description

Aconitum carmichaelii 'Arendsii' | Carmichael's monk's hood

Delight in the late-season splendor of Aconitum carmichaelii 'Arendsii', commonly known as Carmichael's monk's hood. This perennial plant is a striking addition to any garden, particularly valued for its vibrant blue and purple blooms that appear when many other plants are fading.

With an upright growth habit, this species brings structure and color to borders and group plantings, even as the days grow shorter. Its deeply lobed, verdant foliage provides a lush backdrop to the striking flowers that rise above on tall spires.

Key Features

The Aconitum genus is known for its regal presence in the garden, and 'Arendsii' is no exception with its commanding height of 1 meter.
Thriving in well-drained soil, it is adaptable to various ground conditions, ensuring that gardeners can enjoy its beauty regardless of their soil type.
This deciduous perennial enjoys a position in partial shade, making it suitable for those areas of the garden that do not receive full sunlight.
Its stunning blue and purple flowers bloom from late summer into autumn, providing a much-appreciated burst of color late in the season.
'Arendsii' has average water needs and does not bear fruit, simplifying garden maintenance.
Not only is it a robust plant, but it also requires no pruning, making it an excellent low-maintenance option for busy gardeners.

Tips

For optimal growth, ensure that 'Arendsii' is planted in a location that receives partial shade, as too much sun can be detrimental to its development.
Although it is not drought-resistant, regular watering during dry periods will keep this plant thriving.
Propagation through division not only results in more plants to enhance your garden but also invigorates the original plant for continued robust growth. It is best performed in spring or autumn.
Be mindful of the plant's mature height when planning your garden layout to ensure that 'Arendsii' can make a dramatic statement without overshadowing shorter companions.

Ideal placement of a Aconitum carmichaelii 'Arendsii'

The ideal location for Aconitum carmichaelii 'Arendsii' is an area that receives partial shade. This plant thrives under the filtered light of taller trees or in spots where it can be shielded from the harsh afternoon sun. It is adaptable to a range of soil conditions, provided the ground is well-drained. To facilitate the best growth and flowering potential, the soil should remain consistently moist, making average water needs a priority for this species. Its lush green foliage and striking blue to purple flowers in autumn make it a splendid addition for any border or group planting design.

How do I plant a Aconitum carmichaelii 'Arendsii'?

For successful planting, select an area with partial shade to protect the species from intense midday sun. As a pot-grown perennial, it can be planted outside of periods of frost. Ensure the chosen site has well-drained soil to accommodate its moderate water needs and to prevent waterlogging, which could impede the plant's growth. Space individuals adequately to allow for their upright growth habit and eventual mature height of approximately 1 meter. Regular watering after planting is crucial to establish a robust root system, enabling the plant to thrive and produce its striking blue and purple autumnal blooms.

Pruning a Aconitum carmichaelii 'Arendsii'

The Aconitum carmichaelii 'Arendsii' is a low-maintenance perennial that requires no regular pruning. To encourage a tidy appearance and potentially enhance flowering for the following season, one may remove spent flower stalks after blooming has ceased. As autumn progresses, the foliage will naturally wither; this is the appropriate time to cut back the stems to ground level, preparing the plant for its winter dormancy. Always remember to wear gloves when handling this plant, as all parts of it are toxic.

Watering a Aconitum carmichaelii 'Arendsii'

To ensure the robust growth of Aconitum carmichaelii 'Arendsii', maintain consistent moisture levels in the soil, particularly during its flowering period in the late summer and early autumn. Although it requires an average amount of water, be cautious not to allow the soil to become waterlogged. In the absence of rainfall, weekly watering may be necessary to keep the soil well-hydrated. This species is not drought-tolerant, so during extended dry spells, it is vital to monitor soil moisture and water accordingly to prevent stress on the plant.

Fertilising a Aconitum carmichaelii 'Arendsii'

To ensure the Aconitum carmichaelii 'Arendsii' thrives, it is essential to provide it with the appropriate nutrients. Fertilizing in early spring supports the initiation of its vigorous growth cycle and prepares it for the blooming season. A balanced, slow-release fertilizer is ideal, applied as the new foliage emerges. This species benefits from a second application of fertilizer in midsummer, which will enhance flower production as the plant approaches its peak blooming period from August to October.

When applying fertilizer, distribute it evenly around the base of the plant, taking care to avoid direct contact with the foliage or stems, which could potentially cause damage. Watering after fertilizing helps to dissolve the nutrients, allowing them to penetrate the soil and reach the roots efficiently. Proper feeding ensures that this stately perennial maintains robust health and displays a profusion of its characteristic blue and purple flowers.

The characteristics of a Aconitum carmichaelii 'Arendsii'

This species is renowned for its late-season blooms, which provide a vibrant splash of color when many other plants are beginning to fade. The striking deep blue flowers of Aconitum carmichaelii 'Arendsii' are particularly long-lasting, extending the display well into the cooler months. In addition, this plant is a wonderful addition to a moonlight garden, as its blossoms can appear to glow in the dim light, creating a serene nocturnal landscape.

Separating/dividing a Aconitum carmichaelii 'Arendsii'

To ensure the continued health and vigor of Aconitum carmichaelii 'Arendsii', division is recommended. This process, best carried out in the cooler months of spring or autumn, allows the gardener to manage the size of their plants and promote rejuvenated growth. Carefully remove the plant from the soil, taking care to preserve the root structure. Once extracted, split the clump into smaller sections, each with a portion of the root system intact. These divisions should then be replanted into well-draining soil, maintaining their original planting depth. Regular division helps to prevent overcrowding and sustains the plant's upright growth habit, while also encouraging a robust flowering season.

What will be the height of Aconitum carmichaelii 'Arendsii'?

Aconitum carmichaelii 'Arendsii' typically grows to a height of 1 to 1.5 meters when fully mature.

What will be the width of Aconitum carmichaelii 'Arendsii'?

Aconitum carmichaelii 'Arendsii' achieves a maximum spread ranging from 10 cm to 50 cm, depending on its growing environment.

Which soil type is most suitable for the Aconitum carmichaelii 'Arendsii'?

Aconitum carmichaelii 'Arendsii' adapts well to various soil types as long as they are well-drained. Ensuring proper drainage is essential for the healthy growth and development of this plant.

What is the ideal positioning for the Aconitum carmichaelii 'Arendsii'?

The ideal location for Aconitum carmichaelii 'Arendsii' is in an area with partial shade. This plant thrives best when it receives filtered sunlight, such as under the canopy of taller plants or trees.

What is the flowering colour of the Aconitum carmichaelii 'Arendsii'?

The blossoms of Aconitum carmichaelii 'Arendsii' display captivating shades of blue and purple, adding a delightful burst of colour to the plant.

Is the Aconitum carmichaelii 'Arendsii' hardy?

Indeed, Aconitum carmichaelii 'Arendsii' is considered to be winter hardy. It can endure temperatures as low as -23.3°C to -20.1°C, which positions it within the USDA's 6a hardiness zone. This indicates that Aconitum carmichaelii 'Arendsii' is well-equipped to withstand the winter conditions experienced in many regions.

Is the Aconitum carmichaelii 'Arendsii' evergreen?

Aconitum carmichaelii 'Arendsii' is not an evergreen plant. It sheds its leaves during the autumn season and regrows them in the spring, following a deciduous pattern.

What is the growth strength of the Aconitum carmichaelii 'Arendsii'?

Aconitum carmichaelii 'Arendsii' demonstrates a relatively swift growth, typically reaching its mature height within a span of two to five years. This suggests that the plant has a moderately rapid growth rate, providing a timely establishment of its full stature.

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