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Agastache rugosa, 'Liquorice Blue'

Korean Mint

Agastache rugosa, 'Liquorice Blue'
Agastache rugosa, 'Liquorice Blue'
Agastache rugosa, 'Liquorice Blue'
Price: £2.25
RHS Perfect for pollinatorsAttractive to pollinatorsPerennial that will flower in its first year from sowingPerfect for cutting
    Beautiful long spikes on long stalks of numerous whorls of purple-blue flowers. An excellent cut flower but a bold plant for the border as well. 3ft (90cm)

    From China, Japan and, of course, Korea, where it is found on mountains in grassy places along streams, comes this erect, aromatic perennial bearing from June to September densely many-flowered spikes. The leaves with an anise-like odour and flavour, are much prized for use in flavouring, seasoning meats and sauces and for tea. A true perennial, but flowering in as little as 10 weeks or so from seed.
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    Genus: Agastache

    Species: rugosa

    Variety: 'Liquorice Blue'

    Family Name: Lamiaceae/Labiatae

    Seed Catalogue No.: 60K

    English Name(s): Korean Mint

    Hardiness: Hardy

    Lifecycle: Perennial

    Suitable for: Cut Flowers

    Colour: Blue

    Flowers: July, August, September

    Lighting Conditions: Full Sun, Partial Sun

    Soil Type: Clay, Chalk, Sand, Loam

    Soil Acidity: Alkaline, Neutral, Acid

    Moisture: Well-drained

    Customer Reviews - Agastache rugosa, 'Liquorice Blue'

    Average Rating: 5 (5 of 5 based on 1 reviews)

    Agastache rugosa, 'Liquorice Blue'

    Lovely

    Reviewed by Lynn on

    Sewed seed in March, very slow to produce 1cm seedling but managed to get half a dozen to grow on once I took them out of the tray of water. They have just finished flowering but are lovely plants. Very happy.

    Rating: 5/55

    Chiltern Seeds Responded on 2nd September 2022

    Thank you for your review. We would recommend to water from the base, but only to keep the soil moist for germination to occur, water does not need to be constant. We are pleased to hear you have successfully grown these lovely plants and as they are perennials will be rewarding you with flowers again next year. All the best, The Chiltern Seeds Team.

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    Customer Review - Agastache rugosa, 'Liquorice Blue'

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    Germination Instructions

    Sow indoors. Sow onto moist well-drained seed compost. Press seeds lightly into the soil but do not cover. Light is needed for germination. Propagate 18-20°C. Germination 14-28 days, but can be irregular and take up to 90 days. Water only from the base. Once germination begins admit air to prevent damping off. Once seedlings are large enough to handle transplant to 8cm pots. Acclimatise and plant out after danger of frost has passed with 45cm spacing. Can be sown directly in spring into well prepared soil that has had 5cm of gravel and 10cm of compost added and mixed to 30cm depth.

    Growing Instructions

    Prefers full sun in any soil type that is free draining. Needs little attention. Water every week or two. May require staking in exposed conditions.

    Cultivation Instructions

    Cut back spent flowers to encourage a longer flowering window. This is a short lived perennial. This will self-seed but not freely so collect some seed for future sowings.

    When to Sow

    JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD
    • Sow Under Cover/Plant Indoors
    • Direct Sow/Plant Outdoors
    • Flowers/Harvest

    Approximate number of seeds per packet: 340

    Please note we pack the majority of our seeds by volume so the number of seeds indicated is only an approximation.

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    Agastache rugosa, 'Liquorice Blue'

    £2.25