Photo: Юрий Данилевский (Yuriy Danilevsky)CC BY 4.0via iNaturalistresized / cropped
Sea Lavender Plant Care
Halostachys belangeriana (Moq.) Botsch.
Updated · Sources · How we source care data
This unique plant is characterized by its silvery, needle-like leaves that give it a striking appearance. Originating from the deserts of Central Asia, Halostachys belangeriana is highly sought after by plant collectors for its ability to thrive in hot, arid climates and its captivating beauty.
Every 7–14 days
Full sun
60–80°F
40–60%
At a glance
How do you care for Sea Lavender?
Water Sea Lavender every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 60–80°F (16–27°C) and 40–60% humidity. Fertilize it every 2 months during the growing season.
Where Is the Sea Lavender Native To?
What Is the Sea Lavender?
Sea Lavender (Halostachys belangeriana) belongs to the Amaranthaceae family within the Halostachys genus. Sea Lavender is native to western and central Asia and northern China. Sea Lavender is also known as Belanger's Seepweed.
Sea Lavender displays a low spreading succulent growth habit, reaching up to 1 ft tall with a spread of approximately 2 ft. Sea Lavender produces small inconspicuous flowers.
Leaf size: approximately 3 inches.
How Often Should You Water a Sea Lavender?
Halostachys belangeriana requires watering every 7–14 days. Allow the top layer of soil to dry between waterings to prevent root rot. Reduce watering frequency during winter when growth slows.
Watering Frequency
Every 7–14 days
Let soil partially dry between waterings
What Light Does the Sea Lavender Need?
Sea Lavender thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Sea Lavender Prefer?
Halostachys belangeriana grows best at temperatures of 60–80°F. Sea Lavender prefers humidity levels of 40–60%.
Temperature
60–80°F
Humidity
40–60%
What Soil Mix Works Best for a Sea Lavender?
Sandy, well-draining soil with high salt tolerance. Good drainage is essential for Sea Lavender to prevent waterlogging, which leads to root rot and fungal issues.
How Often Should You Fertilize a Sea Lavender?
Feed Sea Lavender every 2 months during the growing season (spring and summer) with a balanced fertilizer diluted to the strength on the label.
Pause feeding in autumn and winter, when growth slows, and never fertilize dry soil — water first.
Fertilizing
Every 2 months
During the growing season
The PlantoScan app can remind you when to water and when to fertilize each plant.
How Do You Repot a Sea Lavender?
Repot every 2-3 years in early spring. Choose a pot one size larger than the current container, and ensure it has drainage holes to allow excess water to escape.
How Do You Propagate a Sea Lavender?
Sea Lavender can be propagated through seeds.
Is the Sea Lavender Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Sea Lavender, 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 Sea Lavender?
Sea Lavender is susceptible to mealybugs, 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 Sea Lavender Need?
Sea Lavender grows outdoors in USDA Zone 5a – 9b. It survives winters down to planting zone 5a. Sea Lavender is native to western and central Asia and northern China.
Hardiness Zone
Zone 5a – 9b
Keep exploring plants
Sea Lavender 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 Halostachys genus — compare its care with other Halostachys species on PlantoScan.
Halostachys is part of the Amaranthaceae plant family — browse all Amaranthaceae genera and species.
Sea Lavender thrives in bright light and direct sun — see other bright-light plants.
Related Plant Care Guides
Closely related plants with similar care requirements:
Sources
- Scientific name & taxonomy: Halostachys belangeriana (Moq.) Botsch., family Amaranthaceae (first published in Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 16: 84 (1954)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Sea Lavender, 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.
- Photo: Юрий Данилевский (Yuriy Danilevsky), CC BY 4.0, iNaturalist — original.
- Hardiness zone: USDA Zone 5a – 9b, estimated from the plant's typical growing conditions.
- 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.
Identify Plants Like the
Sea Lavender Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species