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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.
We would like to provide some tips on how to plant and care for a White flowering rock plants. By following these tips, you can be sure to enjoy your White flowering rock plants for a long time.
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.
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 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.
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.
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 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.
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.
Prunella grandiflora 'Alba' typically reaches a height ranging from 10 centimeters to 50 centimeters when fully mature.
The mature spread of Prunella grandiflora 'Alba' ranges from 50 centimeters to 1 meter, depending on growing conditions.
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.
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.
The flowers of Prunella grandiflora 'Alba' are of a pristine white hue, adding an elegant touch to this plant's appearance.
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.
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.
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.
If we are proud of anything at Heijnen Plants, it is our plant packaging. We have developed our own unique way of packaging our 9x9 cm potted plants. After years of continued development and research, we managed to create packaging that allows plants to be delivered to your home undamaged and quickly through a parcel service. This makes us unique!
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If you have ordered large-sized plants or trees, we deliver them on sealed pallets and place them around your house or driveway. The pallets are sturdy and provide optimal protection for large-sized plants.
We deliver small or medium-sized plants in boxes. The size of the box depends on the size of the plant. We always make sure that the plant has enough space but still stands firmly in the box, so it cannot be damaged during transport.
The Prunella grandiflora 'Alba' is a superb choice for gardeners seeking low-maintenance yet stunning ground cover. Its pristine white flowers add a touch of elegance to any landscape, thriving beautifully under a variety of conditions, and effortlessly attracting pollinators to enhance your garden's vitality.
