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Marrubium vulgare, White Horehound
• Hardiness: H5 (-10 to -15C)
• Type: Herbaceous Perennial
• Height: 45cm
• Spread: 30cm
• Soil type: Chalk, Sand, Loam, Free Draining
• pH: Universal pH
• Habit: Upright
• Flowering colour: Cream, White
• Flowering time: Summer
• Uses: Culinary & Medicinal (Read Jekka's Guide To Culinary Herbs and Medicinal Herbs for more information)
• Attracts pollinators: Yes (Read Jekka's Guide to Pollinators for more information)
• Container suitability: No
• UK native: No
• Caution: Do not take medicinally during pregnancy of if you suffer from stomach ulcers.
• Indoor Sowing: In early spring, into prepared plug trays or pots, cover with perlite. Germination is slow.
• Outdoor Sowing: In late spring, into a well-drained soil, sunny position protected from high wind. Thin to 30cm apart.
• Maintenance: (See Jekka's Blogs on Early Spring, Late Spring, Summer and Autumn maintenance)
• Harvest: N/A
A valuable herb in the treatment of bronchitis, especially where there is a non-productive cough. It has both expectorant and spasmolytic effects which encourage phlegm to be removed. This herb is an important ingredient in ‘cough candy’, a traditional sweet for coughs, it has also be made into a syrup with hyssop and honey. Both concoctions help disguise white horehound’s very bitter taste. However, one attribute of being bitter is that this is seen as encouraging the flow of bile from the gallbladder, which may improve digestion. Externally, white horehound can be used to heal wounds.
Caution: No major issues identified.
Please note: The information provided here is for educational interest only and is not intended to be used to diagnose or treat significant health problems. Any serious or long-term health concerns should always be discussed with a healthcare professional.
See our blog for more information about the National Institute of Medical Herbalists
Jekka's "How to Grow Herbs" videos, includes Jekka's video on how to sow herb seeds for an informative step-by-step guide to seed sowing. For a hands-on herb experience, where you will learn how to grow herbs, check out our Master Classes.
Growing indoors? Check out Jekka's blog on indoor herb gardening for some advice.
For seeds, try Jekka's Seed Club Subscription to regularly receive different sustainable culinary herb seeds for you to try. If you require pots or compost, see Jekka's Herb Kits that includes Jekka's Seed Sowing Kit. This kit contains all you need to sow a collection of herb seeds.
At Jekka’s we sell herbs in 1 Ltr and 2 Ltr pots. These are established and hardy herb plants that are grown following organic principals and to survive the UK climate. Please read Jekka's blog that contains her top steps to growing on your herbs.
There is also ‘Jekka’s Seasonal Tips’ series that covers growing and maintaining herbs in early spring, late spring, summer and autumn & winter. Together they form Jekka’s guide on how to grow herbs. For a hands-on herb experience, where you will learn how to grow herbs, check out our Master Classes.
Our herbs are designed to be grown in containers or planted in the garden. Although some herbs will be quite happy indoors, most prefer being outside. Please see our indoor growing blog for more information.
If you think your herbs need a little more attention we always recommend an environmentally friendly solution, and these are Jekka's top three:
- Maxicrop liquid seaweed: 'Feed on Fridays' as Jekka always says for all round good plant health.
- SB Invigorator: a safe and effective insecticide and fungicide to help control a wide range of pest species
- Epsom salts: the horticultural equivalent of what you put in your bath that will top up the plant's magnesium and stop orange leaves.
Please note, the compost in Jekka's Kits will have enough natural food for approximately 6 weeks.
One of our three core roots is that we are Environmentally Conscious and for the past 30 years all the herbs grown at Jekka’s have been raised following sustainable, environmentally friendly and organic approaches resulting in a remarkable biodiversity at the herb farm.
Our herb seeds are also untreated and can be used to grow organic herb plants. Our seeds are hand packed into gassine bags, which are fully recyclable, compostable and biodegradable. These bags are then put into beautifully illustrated paper seed packets. Therefore, our environmental footprint is small.
Want to know more? You can read more about our sustainability approach to growing herbs in one of Jekka's Blogs. See also: