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Douglas' SagewortArtemisia douglasiana

Also known as California Mugwort · Douglas Sagewort · Douglas' Wormwood

  • Category: Medicinal
  • Type: Herb
  • Sunlight: Prefers full sun for best growth and fragrance.
  • Water: Moderate watering, allow soil to dry slightly between waterings.
  • Temperature: Thrives in average room temperatures.
  • Habitat: Outdoor

Douglas' Sagewort (Artemisia douglasiana) is a perennial herb native to western North America, known for its aromatic foliage and traditional medicinal uses.

Artemisia douglasiana, commonly known as Douglas' Sagewort, is a perennial herbaceous plant native to western North America. This species belongs to the vast Asteraceae family, a diverse group that includes many familiar flowers and herbs. Douglas' Sagewort is recognized for its aromatic foliage and its role within its native ecosystems. Physically, Artemisia douglasiana typically grows to a height of 0.5 to 1.5 meters, forming upright clumps. Its stems are often woody at the base, becoming more herbaceous towards the top. The leaves are a prominent feature, being deeply lobed or divided, and are typically silvery-green to grayish-green in color. The undersides of the leaves are often covered in fine hairs, contributing to their pale appearance. The plant produces small, inconspicuous flowers arranged in panicles. These flowers are typically yellowish or greenish and bloom from late summer into autumn. The fruit is a small achene, characteristic of the Asteraceae family, which aids in its dispersal. The native distribution of Artemisia douglasiana spans a significant portion of western North America, including California, Oregon, Washington, and parts of Idaho and Nevada. It thrives in a variety of natural habitats, often found in open woodlands, chaparral, coastal sage scrub, grasslands, and along streambanks. This adaptability allows it to colonize disturbed areas as well as more established natural landscapes. For successful cultivation, Artemisia douglasiana prefers well-drained soils and full sun to partial shade. It is generally drought-tolerant once established, making it a suitable choice for xeriscaping and low-water gardens in appropriate climates. Historically and ecologically, Artemisia douglasiana has held significance. Indigenous peoples of its native range have utilized this plant for various purposes, including medicinal applications. Its aromatic qualities are due to the presence of essential oils, which are common in many Artemisia species and contribute to their characteristic scent. While not widely cultivated for culinary use, its aromatic foliage can be of interest to gardeners seeking plants with fragrant properties. The plant also plays a role in supporting local wildlife, providing habitat and food sources for insects and other small animals within its native environment. Its ability to thrive in arid conditions also contributes to soil stabilization in its natural habitats.

Photograph © stonebird · CC-BY-SA

Douglas' Sagewort Care Summary

At-a-glance light, water, soil, and growing conditions from plant data

Light

Prefers full sun for best growth and fragrance.

80% intensity

Tolerates partial shade.

Water

Moderate watering, allow soil to dry slightly between waterings.

50% intensity

Reduce in cooler months.

Soil

Well-draining soil. Tolerates a range of soil types, including sandy or loamy, but dislikes waterlogged conditions.

50% intensity

Temperature

Thrives in average room temperatures.

60% intensity

Prefers cooler temperatures in winter for dormancy.

Habitat

Outdoor

50% intensity

Fertilizer

Light feeding in spring with a balanced fertilizer is sufficient.

20% intensity

Avoid over-fertilizing.

Douglas' Sagewort Toxicity

Safety information from plant toxicity data

Toxicity details for Douglas' Sagewort
AttributeValue
Toxic for humansNo

0/5 intensity

Toxic for petsNo

0/5 intensity

EdibleNo

Douglas' Sagewort Quick Facts

Key traits and growing stats from plant data

Plant Type
Herb
Plant Category
Medicinal
Plant Place Type
Ground, Garden
Plant Environment
Outdoor
Lifespan
Perennials
Plant Height
0.6-1.5 m
Spread
0.3-0.6 m
Growth Rate
Moderate
Dormancy
Yes
Leaf Color
Green, Gray-green
Leaf Type
Lobed

Care guide for Douglas' Sagewort

Watering, pruning, propagation, and repotting details from plant data

Water

Water moderately during the growing season. Allow the top inch of soil to dry out between waterings. Reduce watering in cooler months.

Pruning

Prune in early spring to shape the plant and remove any dead or damaged growth. Pinch back stems during the growing season to encourage bushier growth and prevent legginess.

Propagation

Easily propagated from stem cuttings taken in spring or early summer. Can also be grown from seed, though cuttings often result in more vigorous plants.

Repotting

Established plants are best left in the ground. If grown in pots, repot every 2-3 years in spring into fresh potting mix to refresh the soil and prevent root-bound conditions.

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Flowering & Fruiting Cycles

Monthly activity intensity for bloom and fruit across both hemispheres.

Northern hemisphere

Flowering & fruiting calendar

Peak bloom · AugPeak fruit · Sep
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths85
Southern hemisphere

Flowering & fruiting calendar

Peak bloom · AprPeak fruit · Apr
FloweringFruiting
02468JanFebMarAprMayJunJulAugSepOctNovDecActivity intensityMonths85

Douglas' Sagewort Names & Synonyms

Common names and botanical synonyms

Common Names

  • California Mugwort
  • Douglas Sagewort
  • Douglas' Sagewort
  • Douglas' Wormwood
  • Douglas's Sagewort
  • Dream Plant
  • Mugwort
  • Northwest Mugwort
  • Western Mugwort

Douglas' Sagewort Taxonomy

Botanical classification

Taxonomic classification of Douglas' Sagewort
RankName
kingdomPlantae
divisionTracheophyta
classMagnoliopsida
orderAsterales
familyAsteraceae
genusArtemisia
speciesArtemisia douglasiana

Douglas' Sagewort FAQs

Answers based on plant encyclopedia data

How often should I water Artemisia douglasiana?

Water moderately during the growing season, allowing the top inch of soil to dry out between waterings. Reduce watering in fall and winter.

What kind of soil does Douglas' Sagewort prefer?

It prefers well-draining soil and tolerates a range of types, including sandy or loamy, but dislikes waterlogged conditions.

When is the best time to prune Artemisia douglasiana?

Prune in early spring to shape the plant and remove dead or damaged growth. Pinching back stems during the growing season encourages bushier growth.

Is Artemisia douglasiana poisonous to pets or humans?

Artemisia douglasiana is not considered poisonous to pets or humans.

Can Douglas' Sagewort be grown in pots?

Yes, it can be grown in pots, but established plants are best left in the ground. Repot every 2-3 years in spring if needed.