trefle.io · Taken Jul 2, 2022 by Bryan Murphy (cc-by-sa)
Amaranthaceae
Common glasswort
Salicornia europaea
Also known as marsh samphire, sea pickle, jointed glasswort, Salicornia herbacea var. pachystachya
Native Plants · Edibles & Herbs · Glasswort · Samphire · Salt Marsh · Halophyte · Coastal Plant · Succulent · Edible · Amaranthaceae · Estuarine · Specialist
Common glasswort is a fascinating salt-marsh succulent that requires highly specific growing conditions, including saline or brackish soil and full sun exposure. It is best suited to coastal or estuarine garden settings rather than typical home gardens, as it depends on high salt concentrations to thrive. Glasswort is occasionally grown as a novel edible green (samphire) and is valued for its ecological role in coastal habitats.
Growing conditions
The details behind the basics
- Daily light
- 8 hours
- Watering
- Keep soil consistently moist with brackish or lightly salted water; mimics tidal flat conditions · Every 3-5 days; requires consistent saline moisture
- Maintenance
- High
- Soil
- sandy loam
- Soil pH
- 7–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 6 in – 18 in
- Spacing
- 6 in apart
- Growth rate
- Moderate
- Root depth
- Shallow
- Flowers
- No
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Belgium, Denmark, Finland, France, Germany, Great Britain, Ireland, Netherlands, Norway, Poland, Spain, Sweden
- Attracts
- Bees
Sources: trefle, usda
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