Agastache Kudos Ambrosia
Agastache Kudos Ambrosia
Agastache Kudos Ambrosia
Giant Hyssop, Hummingbird Mint
A puny plant, which recovered a bit afterwards, flowered, and then died like an annual, even though it was kept sheltered with very carefully monitored moisture. Honestly, I expected something else; the agastaches, whatever the variety, disappoint me, I'll pass in the future.
Nivifer, 17/04/2025
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Description
'Kudos Ambrosia' Agastache is a superb compact hybrid, producing a profusion of salmon-pink flowers from summer to autumn. Its aromatic foliage, with a strong menthol scent, fills the borders with fragrance. Provide it with a well-drained soil that is not too dry in summer, nor too rich, in full sun. Its lifespan is not very long but it multiplies easily.
'Kudos Ambrosia' Agastache belongs to the Lamiaceae family, which is rich in plants producing essential oils. These substances protect them from herbivorous animals and the sun's rays. This variety is no exception: its deciduous foliage, heart-shaped, dark green, and highly aromatic, releases a powerful mint and anise scent that delights the nose and repels pests!
'Ambrosia' Agastache is part of the Kudos hybrid series, characterised by a dense habit, as well as better cold and winter humidity resistance than other agastaches. From June to October, it produces tight spike-like inflorescences in salmon-pink, well above the stems. The plant forms a compact clump, reaching about 45 to 50 cm (18 to 20in) in height and 45 cm in diameter. Each flower is also enclosed in a purple calyx that enhances their colour. These flowers are also edible in salads. The hardiness of this variety, although not exceptional (-15°C in well-drained soil and sheltered location), is better than other agastaches. Moreover, it is highly nectar-rich and will attract bees and other pollinators, even in autumn when flowers become scarce in the garden.
'Ambrosia' Agastache appreciates full sun or light shade (its stems droop in too shady situations), and any good, not too chalky garden soil. In nitrogen-rich soil, the stems may also tend to droop and may require staking. You can pinch it to improve branching. Although its ancestors provide some resistance to hot climates and drought episodes, it will still look more beautiful and lush if the summer is not too arid. However, it dislikes excess water, so plant it in well-drained soil that prevents moisture from accumulating at its base. Coarse sand and gravel can be useful in heavy soil. Finally, choose a warm and sheltered location, protected from cold winds and severe frosts. Agastaches are still perennials with a rather short lifespan : don't worry if your plant disappears after 3 to 5 years, it's its normal cycle. Remember to divide the clump regularly. In pots, make sure to water it regularly, and it will reward you generously until autumn.
In a field of plants, it will form a beautiful combination with 'See Breeze' Erigeron, Hyssop officinalis, 'Caradonna' Sage, as well as with airy grasses like Feather Grass (Stipa pennata).
Agastache Kudos Ambrosia in pictures
Flowering
Foliage
Plant habit
Botanical data
Agastache
Kudos Ambrosia
Lamiaceae
Giant Hyssop, Hummingbird Mint
Cultivar or hybrid
Planting and care
'Kudos Ambrosia' Agastache is a plant that especially dreads continuously moist soils in winter, as they harm its hardiness and can make it disappear. In heavy soil, pure sand can be used to install the stump without adding any soil. This plant requires a sunny and sheltered exposure from heavy frosts. During very harsh winters, cover the stumps with straw or dead leaves to form a thick mulch. The soil that welcomes it must be fertile, loose, well-drained but rather moist, especially during the flowering period. The plant can tolerate periods of temporary drought, which nevertheless harm flowering.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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