White-flowered Korean mint Agastache rugosa 'Alabaster' 5-10 pot P9

Size: Potmaat leidend

5-10cm

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Pot 9x9 cm (P9)

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Agastache rugosa 'Alabaster' Can be planted now
Careful and fast delivery throughout the United Kingdom

Benefits according to our specialist

Attracts bees
Rich flowering
Low maintenance

Plant features
Description
Planting and care
Packaging and shipping

Genus
Agastache (view all varieties)

Root type
Pot

Pot size
9x9 cm (P9)

Flowering months
June, July, August

Leaf colour
White

Possibilities
Border, Group planting

Soil type
All soil types, well-drained

Positioning
Sun

Winter hardiness
-9,4°C / -3,9°C, USDA zone 8b/9a

Fruit-bearing plants
No

Water needs
Average water

Number of plants per m²
6

Evergreen plants
No

Leaf colour
Green

Fragrant plants
Yes

Growth habit
Upright to bushy growth habit

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

Mature height (cm)
100

Art. no.
1000045

Description

Agastache rugosa 'Alabaster' | White-flowered Korean mint

The Agastache rugosa 'Alabaster', commonly known as white-flowered Korean mint, is a perennial herb celebrated for its aesthetic appeal and aromatic foliage. This cultivar offers a serene display with its pristine white blooms that flourish under the warmth of summer sun. With its upright to bushy growth habit, 'Alabaster' serves as an excellent choice for borders and group plantings, creating a harmonious blend of form and fragrance in any garden setting.

Key Features

Agastache is valued for its long-lasting white flowers that appear from June to August, inviting a serene ambiance to garden spaces.
The plant thrives in well-drained soil across all types, accommodating a wide range of garden landscapes.
Its growth form is both upright and bushy, reaching up to 1 meter in height, which makes it a perfect fit for borders and adding structure to the garden.
Not only is the white-flowered Korean mint a visual delight, but it is also fragrant, adding a sensory layer to its garden presence.

Tips

To maintain the vitality and aesthetic of the white-flowered Korean mint, it is recommended to plant it in a location that receives full sun.
Though it has an average water need, ensuring consistent moisture will keep the plant healthy, especially during prolonged dry spells.
Propagation by division should be carried out during the cooler months of spring or autumn to encourage robust growth in the subsequent season.
Regular deadheading of spent flowers will enhance the plant's appearance and stimulate additional blooming.
Remember, while 'Alabaster' is an elegant addition to any garden, it is not drought-resistant, and therefore, mindful watering practices are essential for its sustained beauty.

Ideal placement of a Agastache rugosa 'Alabaster'

To cultivate Agastache rugosa 'Alabaster' to its fullest potential, select a spot that receives ample sunlight. The plant's need for well-drained soil can be met in a variety of soil types, provided they do not retain excessive water. Ensuring an ideal location is paramount for the herb to exhibit its characteristic bushy and upright growth, reaching an ultimate height of approximately 1 meter. The fragrant nature of this species is best appreciated when placed in a border or amid a group planting, where its delightful aroma can be enjoyed.

How do I plant a Agastache rugosa 'Alabaster'?

For successful establishment, plant Agastache rugosa 'Alabaster' in a well-drained soil of any type, ensuring the location receives full sun. The ideal planting seasons are spring or autumn to allow the roots to settle before extreme temperatures. Space the plants appropriately to accommodate their bushy growth habit, which can reach up to 1 meter in height. After planting, water the specimens to establish good contact between the roots and the soil, catering to their average water needs. For robust growth and to rejuvenate older clumps, division can be performed during the cooler months of spring or autumn.

Pruning a Agastache rugosa 'Alabaster'

To maintain the vigor and aesthetic appeal of Agastache rugosa 'Alabaster', regular pruning is essential. Deadheading, or the removal of spent blooms, should be performed routinely as the flowers begin to fade. This not only encourages the plant to produce new growth but also prevents self-seeding, ensuring that the garden remains tidy and the plants concentrate their energy on blossoming anew. With its upright to bushy growth habit, this task is easily managed, and the result is a neater, more robust display of white flowers throughout the summer and into autumn.

Watering a Agastache rugosa 'Alabaster'

Agastache rugosa 'Alabaster' thrives with consistent moisture, especially when establishing itself in a sunny location. It is crucial to provide regular watering to maintain well-drained soil, ensuring that the plant does not sit in waterlogged conditions. A deep watering schedule is recommended to foster a robust root system, which is particularly beneficial during the plant's peak blooming period in the summer months. During times of high heat or lack of rainfall, increase watering frequency to offset the dry conditions, but always allow the soil to dry slightly between waterings to avoid over-saturation.

Fertilising a Agastache rugosa 'Alabaster'

To ensure the robust vitality of Agastache rugosa 'Alabaster', fertilizing is an essential part of its care regimen. Implement a fertilization schedule that coincides with the growing season, beginning in the spring. Utilize a balanced, general-purpose fertilizer to support the species' lush green foliage and abundant white blooms. It is recommended to fertilize this plant once at the onset of the spring and again in mid-summer to maximize its growth potential and flower production. Careful application around the base of the plant, avoiding direct contact with the leaves and stems, will facilitate nutrient absorption and prevent potential foliage burn. Regular fertilization not only contributes to the plant's health but also enhances its aromatic qualities, a hallmark of this species.

The characteristics of a Agastache rugosa 'Alabaster'

Agastache rugosa 'Alabaster' is a delightful addition to any garden, offering more than just its striking white spires of flowers. This species thrives in well-drained soil and enjoys full sun, which promotes its robust minty fragrance. The flowers, blooming profusely from midsummer to early autumn, are a magnet for pollinators, aiding in the health of the garden ecosystem. Moreover, the leaves of this plant can be used to add a unique flavor to teas and culinary dishes, making it a versatile choice for gardeners and gourmets alike.

Separating/dividing a Agastache rugosa 'Alabaster'

To ensure the continued health and vigor of Agastache rugosa 'Alabaster', division is recommended. This practice rejuvenates the plant and stimulates new growth. Ideally performed in the more temperate months of spring or autumn, the process involves gently lifting the plant from its position and carefully separating it into smaller sections. Each division should have a good portion of the root system intact to ensure successful re-establishment when replanted. The divisions can then be spaced out in well-drained soil under sunny conditions to maintain the plant's upright and bushy appearance, as well as to promote abundant white flowering in the summer and into the autumn.

What will be the height of Agastache rugosa 'Alabaster'?

Agastache rugosa 'Alabaster' typically grows to a height ranging from 50 centimeters to 1 meter.

What will be the width of Agastache rugosa 'Alabaster'?

Agastache rugosa 'Alabaster' will achieve a spread ranging from 10 centimeters to 50 centimeters at maturity.

Which soil type is most suitable for the Agastache rugosa 'Alabaster'?

Agastache rugosa 'Alabaster' is adaptable to various soil types, but it thrives best in well-drained soil. This type of soil ensures that water does not accumulate around the plant's roots, promoting healthy growth.

What is the ideal positioning for the Agastache rugosa 'Alabaster'?

The ideal location for Agastache rugosa 'Alabaster' is a sunny spot. This plant thrives best when placed in an area that receives ample sunlight for healthy growth and blooming.

What is the flowering colour of the Agastache rugosa 'Alabaster'?

The blossoms of Agastache rugosa 'Alabaster' display an elegant white hue, adding a touch of purity and sophistication to this variety.

Is the Agastache rugosa 'Alabaster' hardy?

Yes, Agastache rugosa 'Alabaster' is considered winter hardy. It can withstand temperatures ranging from -9.4°C to -3.9°C, falling within the USDA hardiness zones 8b to 9a. This indicates that Agastache rugosa 'Alabaster' is well-suited to endure winter conditions within these specified temperature ranges.

Is the Agastache rugosa 'Alabaster' evergreen?

Agastache rugosa 'Alabaster' is not evergreen. This plant is deciduous, shedding its leaves during the fall and regrowing them in the following spring.

What is the growth strength of the Agastache rugosa 'Alabaster'?

Agastache rugosa 'Alabaster' typically reaches its mature height within a period of two to five years, signifying a moderate growth rate allowing for gradual but steady maturation.

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