Large selfheal Prunella grandiflora 'Alba' 5-10 pot P9

Size: Potmaat leidend

5-10cm

|

Pot 9x9 cm (P9)

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Available from: 03/02/2025

Number of m2

Nr. of plants

2.90

2.90 per piece

incl. VAT, excl. shipping costs (calculated in shopping cart)

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Number of m2

Nr. of plants

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Bulk discount!

Pcs Save Price/pc

2+ £3.20

6+ -1.6% £3.15

12+ -4.7% £3.05

24+ -6.3% £3.00

96+ -9.4% £2.90

Benefits according to our specialist

Prevents weeds
Plantable year-round
Low maintenance

Plant features
Description
Planting and care
Packaging and shipping

Genus
Prunella (view all varieties)

Root type
Pot

Pot size
9x9 cm (P9)

Flowering months
May, June, July, August

Leaf colour
White

Possibilities
Border, Group planting, Edge planting

Soil type
All soil types, well-drained

Positioning
Semi-shade, Sun

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

Fruit-bearing plants
No

Water needs
Average water

Number of plants per m²
12

Evergreen plants
No

Leaf colour
Green

Fragrant plants
No

Growth habit
Creeping wide-spreading growth habit

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

Mature height (cm)
30

Art. no.
1000976

Description

Prunella grandiflora 'Alba' | Large selfheal

Prunella grandiflora 'Alba', commonly known as the large selfheal, is a charming perennial that graces any garden with its delicate white blooms. This variety is celebrated for its extended flowering season, which spans from May through August, offering a prolonged display of beauty.

The plant's modest height and creeping growth habit make it a perfect selection for border fronts, group plantings, or as a delicate edge to pathways, where its verdant foliage and white blossoms can be admired up close.

Key Features

Prunella grandiflora 'Alba' is known for its creeping, widespread growth, covering the ground with its lush green foliage.
Despite its delicate appearance, the large selfheal is quite versatile, thriving in a broad range of well-drained soils.
It enjoys sunny to partially shaded locations, ensuring that it can fit into various garden designs.
The perennial's white flowers offer a pure and tranquil aesthetic, making them a refreshing addition to any outdoor space.
While not evergreen, Prunella grandiflora 'Alba' is semi-evergreen, retaining its foliage in milder climates, and contributing greenery to the garden for the majority of the year.

Tips

To ensure that your Prunella grandiflora 'Alba' thrives, plant it in a location where the soil is kept moist but well-drained. Regular watering is essential, as the plant is not drought-resistant.
Divide the large selfheal every few years in spring or autumn to promote vigorous growth and maintain the health of the plant.
A simple submersion of the root system during planting ensures that the roots have ample moisture to establish themselves.
Due to its spreading habit, monitor the plant to ensure it doesn't overtake areas dedicated to other species in your garden.

Ideal placement of a Prunella grandiflora 'Alba'

For optimal growth, position Prunella grandiflora 'Alba' in a location that enjoys full sun to partial shade. This species thrives in a variety of soil conditions, provided the ground is well-drained. The area should allow for its creeping, widespread growth habit to flourish without encroaching on neighboring plants. Given its moderate height of 30 cm, it is well-suited for border fronts or as part of a group planting where its white blooms can create a striking contrast against the green foliage from spring through autumn. Regular watering is necessary, especially during dry spells, to maintain its lush appearance.

How do I plant a Prunella grandiflora 'Alba'?

When planting, choose a location that provides either full sun or partial shade to accommodate the adaptable nature of this species. The plant thrives in a range of well-drained soils. Begin by digging a hole that is spacious enough to comfortably accommodate the pot's size. Gently remove the plant from its container, loosening the roots if necessary, and place it in the hole. Ensure that the soil level is consistent with the plant's position in the pot. Backfill the hole, firming the soil to eliminate air pockets, and water thoroughly to settle the soil around the roots, which is critical for establishing the plant. Regular watering is essential, especially during dry spells, as this plant does not exhibit drought resistance.

Pruning a Prunella grandiflora 'Alba'

Pruning of Prunella grandiflora 'Alba' is a straightforward process that contributes to its health and aesthetic appeal. To encourage denser growth and more profuse flowering, cut back the spent blooms in late summer. This practice will not only tidy the appearance of the border or garden edge where it thrives but also stimulate a fresh flush of foliage. As a deciduous to semi-evergreen species with a creeping habit, light pruning helps maintain its lush, ground-covering form without compromising its natural spreading tendency.

Watering a Prunella grandiflora 'Alba'

Prunella grandiflora 'Alba' thrives with consistent moisture and prefers to have its soil kept damp. To ensure proper hydration, submerge the pot in water until the soil is fully saturated, then allow excess water to drain. This watering method is particularly beneficial during the active growth and flowering period. During the hotter months, pay close attention to the plant's moisture level as evaporation can happen quickly, especially in sunnier spots. While the species is not drought-tolerant, be cautious to avoid waterlogging, which can be mitigated with well-draining soil.

Fertilising a Prunella grandiflora 'Alba'

To ensure the Prunella grandiflora 'Alba' thrives, adequate fertilization is critical. Begin by applying a balanced, slow-release fertilizer in early spring to kick-start the growing season. A second application should be made during midsummer to support the plant's prolonged flowering period from May through August. As a creeping, widespread species, it benefits from nutrients that promote robust foliage and vigorous flowering.

Care must be taken to distribute the fertilizer evenly around the plant, avoiding direct contact with the foliage to prevent any potential damage. An organic fertilizer that is gentle on the plant and the environment is an ideal choice. By maintaining this fertilization regimen, the plant will be encouraged to produce its characteristic white blooms and maintain its lush green foliage throughout the growing season.

The characteristics of a Prunella grandiflora 'Alba'

The Prunella grandiflora 'Alba', while modest in its requirements, flourishes remarkably when given a bit of extra care. Its resplendent white flowers can become a focal point in any garden. This species is also particularly forgiving in terms of soil quality, thriving in a range of conditions. For those with limited space, the large selfheal adapts well to container living, making it a versatile choice for balconies and patios as much as for traditional garden beds.

Separating/dividing a Prunella grandiflora 'Alba'

To ensure the vitality and health of Prunella grandiflora 'Alba', division is recommended. This process not only stimulates new growth but is also essential for maintaining the plant's robustness. The optimal times for division are during the cooler periods of spring or autumn. Carefully lift the plant from the soil, gently separate it into smaller sections, and replant these divisions into well-drained soil. This method is particularly effective for the creeping, widespread growth habit of this species, allowing gardeners to manage its spread and encourage a more abundant display of its pristine white blooms.

What will be the height of Prunella grandiflora 'Alba'?

Prunella grandiflora 'Alba' typically reaches a height ranging from 10 centimeters to 50 centimeters when fully mature.

What will be the width of Prunella grandiflora 'Alba'?

The mature spread of Prunella grandiflora 'Alba' ranges from 50 centimeters to 1 meter, depending on growing conditions.

Which soil type is most suitable for the Prunella grandiflora 'Alba'?

Prunella grandiflora 'Alba' can thrive in a variety of soil types, as long as the soil is well-drained. This ensures that excess water does not accumulate around the roots, allowing the plant to flourish in a healthy and balanced environment.

What is the ideal positioning for the Prunella grandiflora 'Alba'?

The ideal location for Prunella grandiflora 'Alba' is one that offers a balance between sun and partial shade. This plant thrives in areas where it can benefit from direct sunlight as well as in locations that provide partial shade throughout the day.

What is the flowering colour of the Prunella grandiflora 'Alba'?

The flowers of Prunella grandiflora 'Alba' are of a pristine white hue, adding an elegant touch to this plant's appearance.

Is the Prunella grandiflora 'Alba' hardy?

Prunella grandiflora 'Alba' is indeed winter hardy, with the ability to withstand temperatures ranging from -23.3°C to -20.1°C. This places it within the USDA zone 6a for winter hardiness. As a result, Prunella grandiflora 'Alba' is well-equipped to thrive in environments that experience typical winter conditions within this hardiness range.

Is the Prunella grandiflora 'Alba' evergreen?

Prunella grandiflora 'Alba' is not an evergreen plant. It is a deciduous plant, meaning it sheds its leaves seasonally and regrows them in the following season.

What is the growth strength of the Prunella grandiflora 'Alba'?

Prunella grandiflora 'Alba' matures relatively quickly, typically reaching its ultimate height within a span of two to five years. This suggests that it has a moderately fast growth rate, allowing it to establish its full height within a few years.

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