Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Achillea crithmifolia
Crithmium-leaved yarrow
good upon receipt, needs to grow
anny, 03/06/2025
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Description
The Achillea crithmifolia, or Sea Fennel-leaved Yarrow, is a vigorous perennial plant that quickly forms a wide and dense evergreen carpet. Its finely cut, silvery grey foliage is soft to the touch and adorned with white to creamy umbels in summer, varying in abundance depending on the soil moisture. Perfectly hardy and tolerant of summer drought, it can withstand moderate footfall, making it an excellent alternative to lawns, even on large surfaces. It can be grown in full sun or partial shade, in any type of soil, on its own or in combination with other ground cover plants.
The Achillea crithmifolia, belonging to the Asteraceae family, is native to mountainous regions in the Balkans. The plant forms a vigorous, naturally-looking ground cover, reaching a height of 15 to 25 cm (6 to 10in) when in bloom, depending on growing conditions. It spreads rapidly, covering an area of 50 cm (20in) to 1m (3ft) through suckers. Its foliage, evergreen in winter, may dry out in summer during periods of intense drought, but the plant will quickly recover with the first rains. Finely cut, feathery, with a greyish-green colour and silvery reflections, and slightly downy, it has a very soft appearance that is pleasant to touch. The flowering, more abundant in moist soil, occurs in June-July, with flat umbel flower heads composed of tiny white flowers with creamy yellow centres.
All yarrows thrive in full sun and have excellent hardiness. Achillea crithmifolia requires very little maintenance and can be used as a ground cover on fairly large surfaces, up to 200 square metres. Yarrow is a plant that can be a great addition to your garden. It is very hardy, undemanding, and water-efficient. This plant can limit the growth of unwanted plants and give a natural look to your garden. To control its invasive tendencies, you can install anti-rhizome barriers. It can even replace the need for mowing and watering that comes with having a lawn, even in dry climates with moderate traffic. It can be combined with other vigorous ground cover plants with complementary growth cycles, such as Phyla nodiflora: in summer, the lush and flowering Phyla dominates, while in winter, the soft silvery foliage of the Achillea takes over. This beautiful combination can also effectively cover the ground in solid perennial flower beds, such as Geranium sanguineum, Erigeron karvinskianus, and Nepeta x faassenii. Many combinations are possible, including Thymus (hirsutus, ciliatus) and other yarrows (millefolium, coarctata, nobilis).
Achillea crithmifolia in pictures
Flowering
Foliage
Plant habit
Botanical data
Achillea
crithmifolia
Asteraceae
Crithmium-leaved yarrow
Caucasus
Planting and care
The Achillea crithmifolia is a simple-to-grow plant that likes sunlight but can also tolerate partial shade in hot and dry climates. It can grow in ordinary soil that has been prepared and loosened to help it establish. This plant can adapt to drained limestone or clay soils, even in dry summers. In areas with low rainfall, watering every 2 weeks is enough to prevent the foliage from drying out, but in most other areas, it can manage on its own. While it isn't very picky about soil type, it will grow better and have more flowers in moist soil. This plant can handle water shortages without a problem - it goes dormant during dry times but comes back strong when it rains. It's important to weed carefully during the first year until the plant has fully spread. After that, manual weeding should be done 2 to 3 times per year. On larger surfaces, you can use mowing instead of manual weeding.
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).
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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.