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Hardy perennial
Lamiaceae
Perennials
Agastache ‘Rosie Posie’
Giant Hyssop
Agastache 'Rosie Posie': 55 cm high and 75 cm spread, full sun exposure. Pink flowers in July-Sept. Zone 5; choose soil compatible with its moisture needs.
- Exposure
- Sun
- Life cycle
- Hardy perennial
- Hardiness
- Zone 5
Discover the plant
Common nameAgastache ‘Rosie Posie’
FamilyLamiaceae
GenusGiant Hyssop
CultivarRosie Posie
TypeHardy perennial
Botanical nameGiant Hyssop
The silhouette of Agastache ‘Rosie Posie’ (Agastache ‘Rosie Posie’) adds texture to garden arrangements. Among its distinctive features is aromatic foliage. The foliage has shades of green, to be highlighted among different textures. The usual flowering period is July-September. At maturity, expect 55 cm in height and 75 cm in width, which makes it suitable for use in the middle of flower beds and group plantings.
Soil choice is essential for Agastache ‘Rosie Posie’: well-drained, rather light; avoid water pockets around the crown. The preferred exposure is full sun. After planting Agastache ‘Rosie Posie’, water enough to thoroughly moisten the root ball. Once established, let the surface dry between waterings and prioritize drainage, especially during mild spells. Keep 75 cm as a guideline between plants; this helps preserve their shape and access for care. The indicated hardiness level is zone 5, to be evaluated according to your garden conditions.
Throughout the seasons, Agastache ‘Rosie Posie’ benefits from timely care: wait until you see spring growth before removing parts that have dried during winter. Winter drainage is crucial for this agastache; avoid depressions where water accumulates during mild spells. For companion planting, consider border salvias, yarrows, and upright sedums in varieties with similar needs. By composing around its volume of 55 cm by 75 cm, you will preserve the visibility of its flowering (July-September) and circulation between plants.
Planting guide
From planting to establishment.
Spacing / density
29.5 inches
Best planting time
Preferably in spring, in warm, workable soil, with regular watering during establishment.
Propagation
Division of clumps; stem cuttings. Sowing does not guarantee the fidelity of a named cultivar.
Growing method
Agastache 'Rosie Posie': Preferably in spring, in warm, workable soil, with regular watering during establishment. After planting Agastache 'Rosie Posie', water enough to thoroughly moisten the root ball. Once established, let the surface dry between waterings and prioritize drainage, especially during thaws. Winter drainage is crucial for this agastache; avoid depressions where water accumulates during thaws.
Soil and care
The right care,at the right time.
Soil pH
Acid to neutral; general indication of the botanical group
Care level
Routine maintenance
Watering
After planting Agastache ‘Rosie Posie’, water sufficiently to deeply moisten the root ball. Once established, allow the surface to dry between waterings and prioritize drainage, especially during mild spells.
Soil type
Draining, rather light; avoid water pockets around the crown
Fertilization
Fertilizer for flowering
Moisture
Low to medium after establishment; prioritize drainage
Seasonal care
Agastache 'Rosie Posie': wait for spring regrowth before removing any parts that have dried out over winter. During its flowering period (July-September), also monitor for damaged stems and neighboring plants that might obscure the clump.
Container growing
A garden,within reach.
Recommended pot size
Stable container, perforated, significantly wider than the root ball; size to be adapted to the format sold and the adult development.
To try Agastache ‘Rosie Posie’ in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (75 cm). Water must drain freely after each watering; check the root ball more often than if planted in the ground. Plan to protect the container in winter depending on your climate.
Bloom and dimensions
Its place,in your garden.
Mature height
21.65 inches
Width / spread
29.5 inches
Flower color
Pink
Foliage color
Green
Foliage type
Lapsed
Growth rate
Moderate
Growth habit
Bushy
Fragrance
Aromatic foliage
Bloom period
July-September
Garden associations
In goodcompany.
Companion plants
Companion plants for Agastache 'Rosie Posie': border sages, yarrows, upright sedums. Choose varieties that tolerate sun and comparable moisture; allow ample space for each mature clump.
Plants to avoid
Around Agastache ‘Rosie Posie,’ especially avoid neighbors that would cover its leaves or strongly compete with its rootball. Compatibility in terms of light, water, and spread takes precedence over a list of so-called enemy plants.
Frequently asked questions
Your questions,answered.
Where to plant Agastache 'Rosie Posie'?
Provide sunshine and suitable soil (draining, rather light; avoid waterlogging around the collar). Winter drainage is crucial for this agastache; avoid depressions where water accumulates during thaws.
Where should I plant Agastache 'Rosie Posie'?
Allow approximately 55 cm in height and 75 cm in width at maturity. Approximately 75 cm between centers, to be adjusted according to the actual development of the clump. This size is suitable for use in the middle of a flowerbed and for group planting.
When does Agastache 'Rosie Posie' bloom?
The period indicated is July-September. The flower color is pink. The exact date and duration depend on the climate, the season, and the plant's establishment.
How to water and care for Agastache 'Rosie Posie'?
After planting Agastache ‘Rosie Posie’, water enough to thoroughly moisten the root ball. Once established, allow the surface to dry out between waterings and prioritize drainage, especially during thaws. Wait to see spring growth before removing parts that dried out over winter.
Can Agastache 'Rosie Posie' be grown in a pot?
To try Agastache 'Rosie Posie' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (75 cm). Water should drain freely after each watering; check the root ball more often than if planted in the ground. Plan to protect the container in winter depending on your climate.
Wildlife and pets
Life,around your plants.
Supporting wildlife
Agastache 'Rosie Posie' in bloom attracts butterflies and hummingbirds. To maintain these visits throughout July-September, avoid treating open flowers and ensure a succession of blooms around the plant.
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