Yes, it spreads rapidly via rhizomes and can be difficult to remove once established.

It is used in some cuisines, but it contains compounds that require careful preparation and moderation.

Plant guide

Mugwort.

Artemisia vulgaris

Pronounced ar-te-MIZ-ee-uh vul-GAIR-is

Also known as Artemisia, Common Wormwood, Eurasian wormwood, Felonherb, Green-ginger, Hierba De San Juan, Mugwort

Mugwort is a hardy perennial herb known for its aromatic, deeply lobed leaves with silvery undersides. It spreads through underground rhizomes and has a long history in traditional herbal practices. You will find it thrives in disturbed soil and open areas.

At a glance

Care level: Easy
Plant type: Perennial herb
Light: Full sun to partial shade
Indoor light: Direct sun
Water: Every 7 to 14 days
Mature size: 3 to 5 feet
Growth rate: Fast
Hardiness: USDA 3 to 9
Bloom time: Mid to late summer

Care

Give this plant plenty of space as it spreads quickly through its root system. Keep an eye out for powdery mildew if the air circulation is poor. It is very drought tolerant once established in your garden.

Watering: Water deeply when the top inch of soil feels dry to the touch.
Feeding: Apply a balanced organic fertilizer once during the spring if growth seems sluggish.
Pruning: Cut the plant back to the ground in late autumn or early spring to encourage fresh growth.
Repotting: If growing in a container, move to a larger pot when the roots begin to circle the bottom.
Soil: Well draining sandy or loamy soil
Soil pH: 6.0 to 7.5
Temperature: -30 to 35°C
Humidity: 30 to 70%
Drought tolerance: High
Lifespan: Perennial, typically 5 to 10 years.
Fragrance: Strong
Deer and rabbits: High

Signs it needs repotting

Roots growing out of the drainage holes.
Plant growth slows significantly.
Soil dries out very quickly.

Safety

People: The plant can cause contact dermatitis in sensitive individuals and contains compounds that may be toxic in large quantities.
Pets: This plant is generally considered toxic to cats and dogs if ingested in large quantities.
Children: Keep children away from the plant as ingestion of large amounts can be harmful.
Contact allergens: The foliage can cause skin irritation or rashes upon direct contact.
Airborne allergens: The pollen is a significant airborne allergen during late summer.
Edibility: Mugwort contains thujone and should be consumed with extreme caution, especially by pregnant individuals.

How to identify it

Deeply lobed dark green leaves
Silvery white fuzzy leaf undersides
Small inconspicuous yellowish flower clusters
Strong aromatic scent when crushed

Height: 0.6 to 1.5m
Spread: 0.6 to 1.2m
Leaves: dark green, silvery white, deciduous
Flowers: yellowish, reddish brown, 0.3 to 0.5cm
Fruit: brown, Autumn

Problems to watch for

AphidsCommon
RustCommon
Powdery MildewUncommon
Root RotUncommon

By symptom

Plant problems by symptom

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Growing it

Propagation: division, seed, cuttings
When to plant: spring, autumn
Overwintering: Cut the stems back to the ground in late autumn after the foliage dies back. No special protection is needed as it is very hardy.
In containers: It grows well in containers, which is recommended to control its spread, using at least a 30 cm pot.

Division

1. Dig up the root clump in early spring.
2. Use a sharp spade to divide the rhizomes into smaller sections.
3. Replant the sections immediately in moist soil.

Plant in a container or a restricted area to prevent its aggressive rhizomes from taking over your garden beds.

Grows well with

Yarrow · They share similar environmental needs and provide a nice textural contrast.
Lavender · Both plants enjoy full sun and well drained soil conditions.

Similar species

Wormwood · It is a related species with similar foliage but a more bitter profile.
Southernwood · Another aromatic member of the genus with a distinct lemon scent.

Science

Family: Asteraceae
Genus: Artemisia
Order: Asterales
Class: Magnoliopsida
Native range: Europe, Asia, and Northern Africa.
Conservation: It is considered an invasive weed in many parts of North America and is not of conservation concern.

It thrives in disturbed soils, roadsides, and waste areas where it outcompetes other vegetation.

Value to wildlife: larval host plant, nectar source
Pollinators: bees, butterflies, moths
Uses: medicinal tea, culinary herb, smudge sticks, ornamental foliage

Through the year

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Flowering

Fruiting

Foliage

Ecological indicators

Salinity: 2/9
Soil reaction: 6/9
Light: 7/9
Temperature: 5/9
Moisture: 5/9
Nutrients: 6/9

Taxonomy resolved against GBIF.

Questions people ask

Is mugwort invasive?: Yes, it spreads rapidly via rhizomes and can be difficult to remove once established.
Can I eat mugwort?: It is used in some cuisines, but it contains compounds that require careful preparation and moderation.

Where the name comes from

The name Artemisia honors the Greek goddess Artemis, while vulgaris means common. It is widely known as mugwort due to its traditional use in brewing.

Good to know

Mugwort is often associated with lunar magic and protection in folklore.
The name mugwort likely comes from its historical use to flavor beer.
It spreads aggressively through underground rhizomes.

Also in

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This guide was generated with AI on September 26, 2026 and checked against GBIF taxonomy. It is general information, not horticultural or veterinary advice. Read about how we build these guides.