Perennial glasswort Plant Care
Salicornia perennis Mill.
Updated · Sources · How we source care data
Salicornia perennis, synonym Sarcocornia perennis, otherwise known as perennial glasswort, is a species of halophytic perennial plant within the family Amaranthaceae. It has a widespread but patchy native distribution, being found in parts of Western Europe, northern and southern Africa, North America from southeast Alaska to south Mexico, the Caribbean, and South America.
Every 7–14 days
Full sun
65–85°F
40–60%
At a glance
How do you care for Perennial glasswort?
Water Perennial glasswort every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 65–85°F (18–29°C) and 40–60% humidity.
Where Is the Perennial glasswort Native To?
What Is the Perennial glasswort?
Perennial glasswort (Salicornia perennis) belongs to the Amaranthaceae family within the Salicornia genus. Perennial glasswort is native to the coasts of southern Britain and Ireland. Perennial glasswort is also known as Everlasting glasswort, Glasswort.
Perennial glasswort displays a low-growing succulent growth habit, reaching up to 0.5 ft tall with a spread of approximately 0.5 ft. Perennial glasswort produces small green flowers inconspicuous in appearance.
Leaf size: approximately 1 inches.
How Often Should You Water a Perennial glasswort?
Salicornia perennis 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 Perennial glasswort Need?
Perennial glasswort thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Perennial glasswort Prefer?
Salicornia perennis grows best at temperatures of 65–85°F. Perennial glasswort prefers humidity levels of 40–60%.
Temperature
65–85°F
Humidity
40–60%
What Soil Mix Works Best for a Perennial glasswort?
Sandy, saline soil with good drainage. Good drainage is essential for Perennial glasswort to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Perennial glasswort?
Rarely requires repotting, best left undisturbed. 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 Perennial glasswort?
Perennial glasswort can be propagated through seeds. Similar propagation techniques also apply to annual glasswort plant care, which shares the same genus.
Is the Perennial glasswort Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Perennial glasswort, 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 Perennial glasswort?
Perennial glasswort 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 Perennial glasswort Need?
Perennial glasswort grows outdoors in USDA Zone 13b. It survives winters down to planting zone 13b. Perennial glasswort is native to the coasts of southern Britain and Ireland. In cooler regions, grow Perennial glasswort as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13b
Keep exploring plants
Perennial glasswort 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 Salicornia genus — compare its care with other Salicornia species on PlantoScan.
Salicornia is part of the Amaranthaceae plant family — browse all Amaranthaceae genera and species.
Perennial glasswort 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: Salicornia perennis Mill., family Amaranthaceae (first published in Gard. Dict., ed. 8. n. 2. 1768 [16 Apr 1768]) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Perennial glasswort, 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 13b, 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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