| Latin Name: | Agastache urticifolia |
| Common Name: | Giant hyssop |
| Family: | Labiatae |
| Synonyms: | A. glaucifolia. Lophanthus urticifolius. |
| Known Hazards: | None known |
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Author: (Benth.)O.Kuntze.
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| Habit: Perennial |
| Habitat: Moist soils of open hillsides, canyons and mountain valleys, from the foothills to about 2,500 metres[212]. |
| Height: 1.2 Width: |
Cultivation Details:
Prefers a warm sunny sheltered position and a well-drained soil. Succeeds in most soils.
This species is not hardy in the colder areas of the country, it tolerates temperatures down to between -5 and -10°c[200]. A plant is growing in a sunny bed at Kew Botanical gardens and appears fully hardy there[K]. This species withstands temperatures down to about -40°c when fully dormant[160].
The flowers are very attractive to bees.
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Propagation Notes:
Seed - sow spring in a greenhouse and only just cover the seed. Germinates in 1 - 3 months at 13°c[133]. Prick out the seedlings when they are large enough to handle and grow them on in the greenhouse for their first year. Plant out in late spring or early summer[K].
Division in spring.
Basal cuttings of young shoots in spring[111].
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