Crimson red valerian Centranthus ruber 'Coccineus' 5-10 pot P9

Size: Potmaat leidend

5-10cm

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Pot 9x9 cm (P9)

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Centranthus ruber 'Coccineus' Can be planted now
Careful and fast delivery throughout the United Kingdom

Benefits according to our specialist

Plantable year-round
Rich flowering
Low maintenance

Plant features
Description
Planting and care
Packaging and shipping

Genus
Centranthus (view all varieties)

Root type
Pot

Pot size
9x9 cm (P9)

Flowering months
June, July, August

Leaf colour
Red, Pink

Possibilities
Border, Group planting

Soil type
All soil types, well-drained

Positioning
Semi-shade, Sun

Winter hardiness
-15,0°C / -9,4°C, USDA zone 7b/8a

Fruit-bearing plants
No

Water needs
Average water

Number of plants per m²
9

Evergreen plants
No

Leaf colour
Green

Fragrant plants
Yes

Growth habit
Upright growth habit

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

Mature height (cm)
60

Art. no.
1000234

Description

Centranthus ruber 'Coccineus' | Crimson red valerian

The Centranthus ruber 'Coccineus', commonly known as crimson red valerian, is a stunning herbaceous plant that brings a vibrant splash of color to any garden border or group planting. With a dazzling display of red and pink hues, this perennial is prized for its long flowering period and ease of care.

This species is noted for its striking red blooms which create a focal point in the summer garden. It exhibits a robust and upright growth habit, reaching an ultimate height of 60 cm, making it a perfect choice for adding structure and height to a garden display.

Key Features

Centranthus ruber 'Coccineus' is a semi evergreen plant, retaining its attractive green, grey, and silver foliage throughout the year, adding to its visual appeal even when not in bloom.
Renowned for its fragrant flowers, it not only adds color but also a delightful scent that enhances the sensory experience of any outdoor space.
This variety is remarkably adaptable, thriving in all well-drained soil types and tolerating both sun and partial shade.
The crimson red valerian is also drought resistant, making it a durable and low-maintenance option for busy gardeners or those in drier climates.
Although the plant does not bear fruit, its continuous offering of flowers from June to August ensures that the garden remains a feast for the eyes throughout the summer.

Tips

To ensure the best growth and flowering results, plant your Centranthus ruber 'Coccineus' in a location that receives full sun to partial shade.
Water the plant regularly, but be careful not to overwater, as it prefers well-drained conditions and is resistant to drought once established.
Propagation of this species can easily be achieved through the sowing of seeds, allowing for the creation of more plants to enhance your garden or to share with fellow gardening enthusiasts.
An annual trim can help maintain the desired shape and size, as well as encourage more vigorous growth and flowering in the following season.

Ideal placement of a Centranthus ruber 'Coccineus'

Centranthus ruber 'Coccineus' flourishes optimally in a position that receives full sun to partial shade. Its preference for sun-drenched locales is evident in its robust flowering and growth. The plant is adaptable to a variety of soil conditions, provided the substrate is well-drained, which is essential for its health and vigor. This species is known for its resilience, tolerating poor soil quality and demonstrating drought resistance. The striking green, grey, and silver foliage maintains its color from spring through autumn, creating a captivating display in any garden setting.

How do I plant a Centranthus ruber 'Coccineus'?

Planting the Centranthus ruber 'Coccineus' should be done in an area that provides full sun to partial shade, accommodating its preference for bright conditions. When planting, ensure the soil is well-drained to promote healthy root development. The plant's pot-grown roots allow for a flexible planting schedule, although avoiding extreme weather conditions such as frost is advisable. Space the plants adequately to support their upright growth habit and eventual height of 60 cm. Initial regular watering is important, but once established, the species' drought resistance becomes evident, requiring only average water attention.

Pruning a Centranthus ruber 'Coccineus'

Centranthus ruber 'Coccineus' benefits from a pruning regimen that encourages vigorous growth and prolongs its blooming period. Deadheading spent flowers regularly throughout the summer can stimulate additional blooming. In late autumn or early winter, after the flowering has ceased, trim back the foliage to tidy up the plant and remove any dead or weak stems. This light pruning will help maintain an upright growth habit and prepare the semi-evergreen foliage for the next growing season.

Watering a Centranthus ruber 'Coccineus'

The species thrives with an average water supply, although it possesses a commendable tolerance for drier conditions thanks to its drought-resistant nature. It is essential to ensure that the soil remains well-drained to maintain optimal health. During the establishment phase, regular watering will encourage a robust root system. Once established, the plant's water requirements diminish, and it can withstand periods of low moisture without compromise. It is advisable to water deeply but infrequently, allowing the soil to dry out slightly between watering sessions, which promotes resilience and reduces the need for constant attention.

Fertilising a Centranthus ruber 'Coccineus'

To support the robust growth and profuse blossoming of Centranthus ruber 'Coccineus', fertilizing is essential. Begin by enriching the soil with a balanced, slow-release fertilizer in early spring, as new growth commences. This initial application will provide a steady supply of essential nutrients throughout the active growing season. A second application of fertilizer, following the same formula, should be made at the onset of the flowering period in June. This will encourage continuous bloom production through the summer months.

It's crucial to apply fertilizer according to the manufacturer's instructions and to avoid over-fertilization, which can lead to excessive foliage at the expense of flower production. Additionally, ensure that the plant is well-hydrated, especially during dry spells, to facilitate nutrient uptake and overall plant health.

The characteristics of a Centranthus ruber 'Coccineus'

Centranthus ruber 'Coccineus' thrives with minimal care, making it an excellent choice for gardeners seeking a low-maintenance yet striking addition. Deadheading spent blooms can promote a second flush of flowers, extending the display of its vibrant hues. This species is particularly adept at self-seeding in the right conditions, which can lead to delightful natural drifts of color in the garden. Its resilience and ability to adapt to various soil types underscore its versatility and ease of cultivation.

Separating/dividing a Centranthus ruber 'Coccineus'

Dividing Centranthus ruber 'Coccineus' is a straightforward task that promotes robust growth and rejuvenates the plant. It is best performed in the cooler months of either spring or autumn to minimize stress on the plant. During division, gardeners should carefully separate the clumps, ensuring that each section has a portion of the root system intact. It is crucial to replant the divisions promptly, maintaining the same soil depth as before to encourage successful establishment. Regular division every few years helps maintain the health of the plant, allowing for continued vibrant displays of its fragrant blooms.

What will be the height of Centranthus ruber 'Coccineus'?

Centranthus ruber 'Coccineus' typically grows to a height ranging from 50 centimeters to 1 meter.

What will be the width of Centranthus ruber 'Coccineus'?

Centranthus ruber 'Coccineus' can achieve a width ranging from 50 centimeters to 1 meter when fully mature.

Which soil type is most suitable for the Centranthus ruber 'Coccineus'?

Centranthus ruber 'Coccineus' can thrive in various soil types, but it particularly favors well-drained soil. This type of soil allows for proper water drainage, which is essential for the healthy growth of the plant.

What is the ideal positioning for the Centranthus ruber 'Coccineus'?

Centranthus ruber 'Coccineus' thrives best in a location that offers both sun and partial shade. This plant is adaptable to varying light conditions and can flourish in environments with intermittent sunlight and areas where the sunlight is partially filtered.

What is the flowering colour of the Centranthus ruber 'Coccineus'?

The blossoms of Centranthus ruber 'Coccineus' display vibrant hues of red and pink, adding a delightful pop of color to the plant.

Is the Centranthus ruber 'Coccineus' hardy?

Centranthus ruber 'Coccineus' is indeed winter hardy. It has the ability to tolerate temperatures ranging from -15.0°C to -9.4°C, corresponding to USDA hardiness zones 7b to 8a. This indicates that Centranthus ruber 'Coccineus' can endure the winter season in areas falling within these specified zones.

Is the Centranthus ruber 'Coccineus' evergreen?

Centranthus ruber 'Coccineus' is not an evergreen plant. It sheds its leaves at certain times of the year, typically during the autumn season, and regenerates new foliage in the following spring.

What is the growth strength of the Centranthus ruber 'Coccineus'?

Centranthus ruber 'Coccineus' attains its ultimate height within a span of 2 to 5 years. This plant demonstrates a moderate growth rate, gradually reaching its full stature over a period of a few years.

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