Sea Wormwood
Artemisia maritima

Family: Asteraceae or Compositae

What it is like

Artemisia maritima is a deciduous Shrub growing to 0.6 m (2ft). See above for USDA hardiness. It is hardy to UK zone 7. It is in flower from August to September. The species is hermaphrodite (has both male and female organs) and is pollinated by Wind. Suitable for: light (sandy) and medium (loamy) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in saline soils. It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought. The plant can tolerate maritime exposure.

Height (m): 0.6

Where it is found

Drier parts of salt marshes in sand and shingle.

Much of Europe, including Britain, east to central Asia.

Conservation Status:

Countries/locations it is found in

How it is used

Food

Rating: 1

The leaves are occasionally used as a flavouring. Some caution is advised, see the notes above on toxicity.

Condiment: the various plants that are used as flavourings, either as herbs, spices or condiments.

Medicine

Rating: 2

Sea wormwood is not much used in herbal medicine, though it is often used domestically. Its medicinal virtues are similar to wormwood, A. absinthum, though milder in their action. It is used mainly as a tonic to the digestive system, in treating intermittent fevers and as a vermifuge. The leaves and flowering shoots are anthelmintic, antiseptic, antispasmodic, carminative, cholagogue, emmenagogue, febrifuge, stimulant, stomachic, tonic and vermifuge. The plant is harvested as it comes into flower and is dried for later use. The unexpanded floral heads contain the vermicide 'santonin'.

Anthelmintic: Expels parasites from the gut.

Antiseptic: Preventing sepsis, decay or putrefaction, it destroys or arrests the growth of micro-organisms.

Antispasmodic: Relaxes muscular spasms and cramps, calming nervous irritation.

Carminative: Reduces flatulence and expels gas from the intestines.

Cholagogue: Increases the flow of bile and its discharge from the body.

Emmenagogue: Promotes or increases the menstrual flow. In early stages of pregnancy it can induce an abortion.

Febrifuge: Reduces fevers.

Stimulant: Excites or quickens activity of the physiological processes. Faster acting than a tonic but differing from a narcotic in that it does not give a false sense of well-being.

Stomachic: Aids and improves the action of the stomach.

Tonic: Improves general health. Slower acting than a stimulant, it brings steady improvement.

Vermifuge: Expels and kills internal parasites.

Other

Rating:

The growing shoots are said to repel insects and mice, they have also been used as a strewing herb. An infusion is said to discourage slugs and insects.

Repellent: Plants that are said to deter but not necessarily kill various mammals, birds, insects etc.

Strewing: Plants, usually aromatic, that are strewn on the floor to give a nice smell, repel insects etc.

Scented Plants: Plants noted for their scent

How it is grown

Succeeds in any soil but prefers a poor dry soil with a warm aspect. Easily grown in a well-drained circumneutral or slightly alkaline loamy soil, preferring a sunny position. Plants are longer lived, more hardy and more aromatic when they are grown in a poor dry soil. Tolerates a pH in the range 6.0 to 7.6. Dislikes shade. Established plants are very drought tolerant. Tolerates maritime exposure. The whole plant has a sweet aromatic smell. Plants in this genus are notably resistant to honey fungus. Members of this genus are rarely if ever troubled by browsing deer.

Propagating it: Seed - surface sow from late winter to early summer in a greenhouse, making sure that the compost does not dry out. When large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant out in late spring or early summer. Cuttings of half-ripe wood, July/August in a frame. Division in spring or autumn.

Best place to grow: Cultivated Beds;

Habit: Shrub

Hardiness: 6-9

Growth:

Soil: Light (sandy), medium

Shade: No shade

Moisture: Dry, moist

Things to keep in mind

The following notes are from a report on the closely related A. absinthum, they quite possibly also apply to this species. The plant is poisonous if used in large quantities. Even small quantities have been known to cause nervous disorders, convulsions, insomnia etc. Just the scent of the plant has been known to cause headaches and nervousness in some people.

Its other names

Local names

Synonyms

Seriphidium maritimum. (L.)Soják.