Alaska mist Plant Care

Romanzoffia unalaschcensis var. glabriuscula Hultén

Updated · Sources · How we source care data

This plant's diminutive, lance-shaped leaves create a delicate, feathery appearance that is sure to catch the eye of plant enthusiasts. Originating from the Aleutian Islands, this species is prized by collectors for its rarity and unique beauty, making it a coveted addition to any botanical collection.

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Water

Every 3–5 days

Light

Partial shade to full shade

Temp

50–75°F

Humidity

40–60%

At a glance

How do you care for Alaska mist?

Plant Alaska mist in partial shade to full shade (USDA zones 12a) and water a young shrub every 3–5 days until it is established. It tolerates temperatures of 50–75°F (10–24°C). Fertilize it every 6 months during the growing season.

What Is the Alaska mist?

Alaska mist (Romanzoffia unalaschcensis var. glabriuscula) belongs to the Boraginaceae family within the Romanzoffia genus. Alaska mist is native to Aleutian Islands, Alaska. Alaska mist is also known as Unalaska romanzoffia.

Alaska mist displays a low mat-forming groundcover growth habit, reaching up to 0.5 ft tall with a spread of approximately 1 ft. Alaska mist produces small white or pink bell-shaped flowers in clusters.

Leaf size: approximately 1 inches.

How Often Should You Water a Alaska mist?

Water a young or newly planted Alaska mist every 3–5 days, soaking the whole root zone, until it is established — usually one to two growing seasons. Established shrubs mainly need water during long dry spells. In a container, water whenever the top few centimetres of soil are dry.

Watering Frequency

Every 3–5 days

Until established; then in dry spells

What Light Does the Alaska mist Need?

Alaska mist thrives in partial shade to full shade. The optimal light range is 100–500 lux. Avoid placing Alaska mist in direct, harsh sunlight for extended periods, as this can scorch the foliage.

Light Requirement

Partial shade to full shade

100–500 lux

What Temperature and Humidity Does the Alaska mist Prefer?

Romanzoffia unalaschcensis var. glabriuscula tolerates temperatures of 50–75°F. Alaska mist prefers humidity levels of 40–60%.

Temperature

50–75°F

Humidity

40–60%

What Soil Mix Works Best for a Alaska mist?

Well-draining sandy soil with organic matter. Good drainage is essential for Alaska mist to prevent waterlogging, which leads to root rot and fungal issues.

How Often Should You Fertilize a Alaska mist?

Feed Alaska mist every 6 months during the growing season with a balanced, slow-release fertilizer at the rate on the label. Established shrubs in good soil often need little extra feeding, so let weak growth or pale foliage guide you.

Stop feeding by late summer so new growth can harden before winter.

Fertilizing

Every 6 months

During the growing season

The PlantoScan app can remind you when to water and when to fertilize each plant.

Where Should You Plant a Alaska mist?

Choose a spot with partial shade to full shade and well-draining sandy soil with organic matter. Avoid low spots where water collects after rain.

Alaska mist is suited to USDA Zone 12a.

Plant container-grown or balled-and-burlapped shrubs in spring or early autumn, setting the root flare at soil level, and water well after planting.

How Far Apart Should You Plant a Alaska mist?

Alaska mist can spread to about 1 ft (0.3 m) and reach about 1 ft (0 m) tall. Space plants about 1 ft (0.3 m) apart so mature crowns don't crowd each other, and plant at least half that distance from buildings, fences and paths.

Planning a row or hedge? Try the plant spacing calculator.

How Do You Prune a Alaska mist?

Prune Alaska mist while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.

If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the shrub in one year.

How Do You Care for a Alaska mist in Winter?

Alaska mist is frost-tender (hardy to USDA zone 12). In colder areas grow it in a container and move it to a bright, frost-free place before the first frost.

How Do You Propagate a Alaska mist?

Alaska mist can be propagated through seeds, division of rhizomes. Similar propagation techniques also apply to california mist maiden plant care, which shares the same genus.

Is the Alaska mist Toxic to Pets and Children?

Pet safety not verified

The ASPCA does not list Alaska mist, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.

This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.

See all plants toxic to cats and plants toxic to dogs.

What Pests and Diseases Affect the Alaska mist?

Alaska mist is susceptible to aphids, spider mites. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.

Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.

What USDA Hardiness Zone Does the Alaska mist Need?

Alaska mist grows outdoors in USDA Zone 12a. It survives winters down to planting zone 12a. Alaska mist is native to Aleutian Islands, Alaska. In cooler regions, grow Alaska mist as a houseplant or bring it indoors before the first frost.

Hardiness Zone

Zone 12a

Keep exploring plants

Alaska mist is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.

It belongs to the Romanzoffia genus — compare its care with other Romanzoffia species on PlantoScan.

Romanzoffia is part of the Boraginaceae plant family — browse all Boraginaceae genera and species.

Alaska mist copes with lower light than most plants — browse the full list of low-light plants.

Related Plant Care Guides

Closely related plants with similar care requirements:

Sources

  • Scientific name & taxonomy: Romanzoffia unalaschcensis var. glabriuscula Hultén, family Boraginaceae (first published in Fl. Aleutian Isl. : 282 (1937)) — World Flora Online record, IPNI name record.
  • Pet toxicity: Pet safety not verified: the ASPCA does not list Alaska mist, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
  • Hardiness zone: USDA Zone 12a, calculated from the plant's minimum temperature.
  • Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.

Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.

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