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Agastache scrophulariifolia (Purple giant hyssop)
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1 hour care
per year
per year
1m
Max height
Max height
0.4m
Max spread
Max spread
1-2 years
To maturity
To maturity
Plant details
Botanical name
Agastache scrophulariifolia
Other names
Purple giant hyssop
Genus
Agastache Agastache
Species
A. scrophulariifolia - A. scrophulariifolia is an erect, bushy perennial with aromatic, heart-shaped leaves and spikes of pink or purple flowers from mid-summer to early autumn.
Agastache scrophulariifolia is: Deciduous
Fragrance
Foliage has a licorice scent
Habit
Upright
Flower
Purple, Pink in Summer; Pink, Purple in Autumn
Foliage
Green in Summer; Green in Autumn
How to care
Watch out for
Specific pests
Slugs Slugs
General care
Propagation methods
Division, Seed, Semi-ripe cuttings, Softwood cuttings
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Where to grow
Agastache scrophulariifolia (Purple giant hyssop) will reach a height of 1m and a spread of 0.4m after 1-2 years.
Suggested uses
Beds and borders, City, Cottage/Informal, Drought Tolerant, Flower Arranging, Low Maintenance, Wildlife
Cultivation
Plant in fertile, well-drained soil in full sun.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Agastache scrophulariifolia
Other names
Purple giant hyssop
Genus
Agastache Agastache
Species
A. scrophulariifolia - A. scrophulariifolia is an erect, bushy perennial with aromatic, heart-shaped leaves and spikes of pink or purple flowers from mid-summer to early autumn.
Foliage
Deciduous
Fragrance
Foliage has a licorice scent
Habit
Upright
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Colour
Flower
Purple, Pink in Summer; Pink, Purple in Autumn
Foliage
Green in Summer; Green in Autumn
How to care
Watch out for
Specific pests
General care
Propagation methods
Division, Seed, Semi-ripe cuttings, Softwood cuttings
Monthly care advice
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Where to grow
Agastache scrophulariifolia (Purple giant hyssop) will reach a height of 1m and a spread of 0.4m after 1-2 years.
Suggested uses
Beds and borders, City, Cottage/Informal, Drought Tolerant, Flower Arranging, Low Maintenance, Wildlife
Cultivation
Plant in fertile, well-drained soil in full sun.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, West
Exposure
Sheltered
UK hardiness Note: We are working to update our ratings. Thanks for your patience.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4
Defra's Risk register #1
Plant name
Agastache scrophulariifolia (Purple giant hyssop)
Common pest name
tomato thrips
Scientific pest name
Ceratothripoides brunneus
Type
Insect
Current status in UK
Absent
Likelihood to spread to UK (1 is very low - 5 is very high)
3
Impact (1 is very low - 5 is very high)
3
General biosecurity comments
Thrips present in Africa; the Caribbean and parts of Asia; frequently intercepted in the UK. Can cause significant damage to tomatoes and other crops in countries where it is present. Europe wide PRA will consider its potential to establish and cause damage.
About this section
Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.
Traveling or importing plants? Please read "Don't risk it" advice here
Suspected outbreak? Click here for contact details to report to the relevant authority.
Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | Tell us... |
| Soil drainage: | Well-drained | Tell us... |
| Soil pH: | Acid, Alkaline, Neutral | Tell us... |
| Light: | Full Sun | Tell us... |
| Aspect: | South, West | Tell us... |
| Exposure: | Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
ARTICLES WITH THIS PLANT
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