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Giant Hyssop

Agastache rugosa

Nettle-leaved Hyssop, Korean Mint, Wrinkled giant hyssop

Ideal plant to add colour to the garden in late seasons when plants are fading. Provides a striking colourful impact to beds, containers, borders, herb gardens and landscaping. It is part of the Mint family and used as herb in recipes.

Planning

Difficulty
Easy
Flowering time
Spring, Summer, Winter
Fruiting time
Summer

Harvesting

Harvest leaves and stems in Springs/early winter/late summer removing the leaves of the stem.

Propagation

Division
Divide plants in spring.
Seed
Sow seeds in spring in a greenhouse or warm area and only just cover the seed. Plant out in late spring or early summer.
Cuttings
Take cuttings of young shoots in spring. Re-pot young shoots (10 - 15cm) tall in a lightly shaded position in a greenhouse/warm area. Roots appear within 3 weeks. Plant out in summer/following spring.

Special features

Attracts useful insects
Butterflies and bees
Pot plant
Grows well in well-drained soil in pots, beds and containers.
Drought resistant
Drought tolerance.
Indoor plant
Put pots under direct sunlight in well-drained soil. Prune and remove spent flowering spikes through the season.
Attracts birds
Hummingbirds and nectar feeders

Geography

Origin
East Asia, China, Japan, Korea, Russian Primorye, Taiwan, and Vietnam
Natural climate
Tropical

Environment

Light
Full Sun
Soil moisture
Moist
Soil type
Chalk, Clay, Loam, Sand
Soil PH preference
Acid, Alkaline, Neutral
Frost hardiness
Hardy

Uses

Medicinal
Leaves and stem are used to improve the appetite and strengthen the digestive system, it relieves symptoms such as abdominal bloating, indigestion, nausea and vomiting. Also shows anticancer activity.
Edible
Young leaves - raw or cooked is used as a flavouring or as an addition to the salad bowl. The leaves can be used as a tea substitute. It has a pleasant flavour.

Personality

Family
Lamiaceae
Flower colour
Purple, Blue
Scent
Mild

Problems

Powdery mildew
Powdery mildew
Powdery mildew
Erysiphaceae

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