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Agastache urticifolia (Horse mint)

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Skill rating Beginner
skill rating
Ultimate spread 0.4m
max. spread
Ultimate height 1.2m
max. height
Time to maturity 1-2 years
to maturity
Maintenance level 1 hour care
per year

Botanical name: Agastache urticifolia

Other names: Horse mint, Nettleleaf giant hyssop


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Genus: Agastache

Species: A. urticifolia - A. urticifolia is an upright perennial with fragrant, green leaves and short spikes of soft purple-blue flowers that bloom in summer.

Agastache urticifolia is: Deciduous

Flower: Pale-purple, Pale-blue in Summer

Foliage: Grey-green, Green in Spring; Grey-green, Green in Summer; Grey-green, Green in Autumn

Fragrance: Aromatic leaves

Habit: Tall

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Watch out for

Specific diseases: Powdery mildew

General care

Pruning: Avoid the temptation to cut back the faded flower-stems in autumn since they provide interest in the winter months.. REGISTER to read more...

Propagation methods: Seed. REGISTER to read more...


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Agastache urticifolia (Horse mint) will reach a height of 1.2m and a spread of 0.4m after 1-2 years.


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Suggested uses: Beds and borders, City, Cottage/Informal, Garden edging, Gravel, Ground Cover, Wildlife

Cultivation: Plant in fertile and well-drained soil in full sun. This is a short-lived plant.

Suitable for your garden?
In progress indicator
This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Match unknown
Soil drainage: Moist but well-drained, Well-drained Match unknown
Soil pH: Acid, Neutral Match unknown
Light: Partial Shade, Full Sun Match unknown
Aspect: South, West Match unknown
Exposure: Exposed, Sheltered Match unknown
Hardiness: Hardy (H4) Match unknown

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We list 1 supplier who tell us they sell Agastache urticifolia (Horse mint). In order to see the list you'll need to either register or log in as a full member.


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