Agastache cana
Agastache cana
Agastache cana
Agastache cana
Agastache cana
Agastache cana
Silver agastache
Great disappointment: none of the agastaches planted emerged. Delivered without stems.
Fanny, 29/09/2024
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Description
Agastache cana, also known as silver agastache, is a North American botanical species appreciated for its long flowering period, aromatic vegetation, and its drought resistance. It is a pollinator-friendly plant that brings colour and life to borders, rock gardens, and containers. In theory, it is a perennial plant that quickly forms a beautiful flowering clump. It requires no watering in summer, but does not survive well in humid winters. This agastache can self-seed.
Agastache cana belongs to the Lamiaceae family, like mints, lavenders, and numerous aromatic plants. This species is found from the southern United States (Texas) to New Mexico. In the wild, it is found on slopes of arid mountains, between 1200 and 2000m (3937 and 6562ft) in altitude, in regions where summer and winter are dry. It is a woody-based perennial plant with trailing roots. It grows rapidly, developing into a well-branched clump that is almost as tall as it is wide. When in bloom, it measures approximately 70cm (28in) in height and 60cm (24in) in width. Its quadrangular stems bear small, lanceolate, hairy, coarsely toothed leaves, 0.8 to 1.2cm (1in) long, with a slightly greyish-green colour. When crushed, they release a slightly aniseed and minty fragrance. Flowering occurs from June to September. Short floral spikes form at the tip of the stems, measuring 4 to 6cm (2in). They are composed of numerous bilabiate tubular flowers, measuring 1.2 to 2.5cm (1in) in length, with a deep raspberry-pink colour. This flowering is nectar-rich and pollinator-friendly. The honey produced by bees after foraging on these flowers has a subtle aniseed scent.
Agastache cana thrives in full sun and porous soils that do not retain water. According to most sources, its resistance to dry cold is estimated to be at least -15°C (5°F). This lovely plant will be ideal in natural or country-style flower beds, in a dry garden, in a rock garden, or in a vegetable garden where it can accompany thyme, savory, chervil, or basil. In a rock garden, for example, you can plant it with catmints, lavenders, cotton lavenders, rosemary, and shrub salvias. Wait until spring to plant it in humid regions. Dried flowers can be stored for a long time in bouquets. The leaves can be used in cooking as a substitute for aniseed, or in herbal teas after drying. Rubbing the foliage on the skin is said to repel mosquitoes.
Agastache cana in pictures
Flowering
Foliage
Plant habit
Botanical data
Agastache
cana
Lamiaceae
Silver agastache
Cultivar or hybrid
Planting and care
Transplant outdoors when all risk of frost has passed. Space the plants 50 to 60cm (20 to 4in) apart. Plant them in well-drained soil, in a sunny location. This plant does not tolerate wet soils in winter. It withstands summer drought once well-rooted. In humid climates, both summer and winter, it tends to behave like an annual plant.
Agastache is a generally robust and undemanding plant. It adapts to most soils, even limestone and clay, provided they are properly drained. In heavy soil, incorporate compost, gravel, or coarse sand into the garden soil. It prefers a sunny exposure or, at most, partial shade. It can self-seed abundantly and become invasive.
To protect the roots from severe frost, cover them with a thick mulch. Also protect them from slugs and snails.
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).
The flowering period indicated on our website applies to countries and regions located in USDA zone 8 (France, the United Kingdom, Ireland, the Netherlands, etc.)
It will vary according to where you live:- In zones 9 to 10 (Italy, Spain, Greece, etc.), flowering will occur about 2 to 4 weeks earlier.
- In zones 6 to 7 (Germany, Poland, Slovenia, and lower mountainous regions), flowering will be delayed by 2 to 3 weeks.
- In zone 5 (Central Europe, Scandinavia), blooming will be delayed by 3 to 5 weeks.
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 planting period indicated on our website applies to countries and regions located in USDA zone 8 (France, United Kingdom, Ireland, Netherlands).
It will vary according to where you live:
- In Mediterranean zones (Marseille, Madrid, Milan, etc.), autumn and winter are the best planting periods.
- In continental zones (Strasbourg, Munich, Vienna, etc.), delay planting by 2 to 3 weeks in spring and bring it forward by 2 to 4 weeks in autumn.
- In mountainous regions (the Alps, Pyrenees, Carpathians, etc.), it is best to plant in late spring (May-June) or late summer (August-September).
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.
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