Glasswort
sarcocornia perennis
Also known as: ["Glasswort","Marsh samphire","Perennial glasswort"]
Overview
A halophytic plant native to coastal regions, characterized by fleshy, succulent stems and small, scale-like leaves.
Benefits & Perks
["drought tolerant","salt tolerant","wildlife attractant (bees, butterflies, birds)"]
Botanical Classification
| Phylum: | Magnoliophyta |
| Class: | Magnoliopsida |
| Order: | Caryophyllales |
| Family: | Amaranthaceae |
| Genus: | Sarcocornia |
| Botanical Name: | Sarcocornia perennis |
Plant Characteristics
Basic Information
- Category: Herbs & Weeds
- Suitable Location: coastal gardens, rockeries, or containers in full sun
- Suitable For:
- Is Weed: No
- Allergenicity: low
Environmental Needs
- Climate: {"temperatureRange":"0–35°C"}
- Hardiness: {"zones":"8–11"}
- Misting: rarely required, only if ambient humidity is very low
- Drainage: Fast-draining to prevent waterlogging.
- Soil Type: Sandy, gritty, or loamy soil with low organic matter. Well-draining is critical.
Maintenance Level
- Maintenance Level: very low
- Toughness Level: high
- Pruning Frequency: Annually in late winter or early spring before new growth begins.
- Pruning Intensity: Light to moderate, removing no more than 20–30% of growth at a time.
Care Details
Ideal Sunlight Coverage:
Full sun (6–8 hours of direct sunlight daily). Tolerates coastal conditions with high light intensity.
Sunlight Tolerance Tips:
Acclimate plants gradually to intense sunlight if moved from shade. Protect from harsh midday sun in extreme heat. Suitable for coastal or open garden placements.
Care Requirements
Care Difficulty
easymoderate
Sunlight
full sun
Use shade cloth in peak summer; rotate plant for even light exposure; avoid sudden light changes.
Watering
every 7–10 days during active growth, less frequently in dormant periods
Water thoroughly until runoff, allow soil to dry partially between waterings, and avoid frequent shallow watering.
Soil
sandy, well-draining soil with moderate salinity tolerance
pH: Slightly alkaline to neutral (pH 7.0–8.0).
Ensure soil dries between waterings; avoid heavy clay soils; test pH if issues arise.
Temperature
Thrives in warm to hot conditions, ideal range 60–90°F (15–32°C). Tolerates mild frosts but prefers stable warmth.
Protect from frost; water early to avoid heat stress; adjust care for seasonal shifts.
Fertilizing
every 3 months with a balanced, slow-release fertilizer
Use a low-nitrogen formula; fertilize after watering to prevent root burn; stop in dormant periods.
Propagation
Methods
Stem cuttings or division. Stem cuttings are more common for home growers.
Step-by-Step Propagation Guide
- Take 4–6 inch cuttings.
- Remove lower leaves.
- Dip in hormone.
- Plant in medium.
- Keep moist.
Best Time: Spring or early summer when temperatures are warm and stable.
Environment
Warm (70–80°F), high humidity (60–70%), and bright indirect light.
Medium
Well-draining mix of sand and peat moss, or cactus mix.
Hormone
Optional but recommended for faster rooting.
Timeline
Roots develop in 3–6 weeks; establish in new pot within 2–3 months.
Tools Needed
Pruners, rooting hormone, small pots, well-draining medium.
Quick Tips
Use healthy, non-flowering stems; maintain humidity with a plastic cover; avoid direct sun.
Pruning & Repotting
Pruning Guide
Method
Selective pruning of older or leggy stems to promote new growth.
Pruning Plan
Remove dead or damaged stems to maintain vigor and shape. Prune lightly to encourage bushier growth.
Tools
Pruning shears, gloves, disinfectant for tools.
Checklist
Disinfect tools; prune dead/damaged stems; shape lightly; clean up debris.
Repotting Guide
Best Season
Spring, when the plant is entering active growth.
Pot Size
Increase pot size by 1–2 inches in diameter.
Method
Remove plant gently; trim roots if needed; place in slightly larger pot with fresh, well-draining soil; water lightly.
Suggestions
Repot every 2–3 years or when roots fill the container. Necessary to refresh soil and provide space.
Checklist
Choose appropriate pot; prepare fresh soil mix; handle roots carefully; water after repotting.
Advanced Care Tips
Watering Mastery
Watering Checklist
Check soil moisture before watering; water deeply; ensure drainage; adjust frequency seasonally.
How to Apply Water Properly
Water directly at the root zone, ensuring even saturation to a depth of 6–8 inches. Ensure excess water drains away to prevent waterlogging. Water early in the morning to minimize evaporation.
Watering Schedule Tips
Water deeply once every 1–2 weeks during active growth, reducing frequency in winter to every 3–4 weeks. Adjust based on rainfall and soil moisture retention.
Soil Improvement
Add coarse sand or perlite to improve drainage; incorporate small amounts of compost for fertility.
Temperature Stress Management
Signs of Temperature Issues
Chlorosis or leaf drop in cold stress; wilting or scorching in excessive heat.
Cold Stress
Growth slows or halts below 50°F (10°C). Prolonged cold may cause root damage or dieback.
Solution: Move to a sheltered location or cover with frost cloth. Avoid overwatering in cold conditions.
Hot Stress
Leaves may scorch or wilt in extreme heat, especially with inadequate water.
Solution: Provide partial shade during peak heat, increase watering, and ensure good air circulation.
Fertilizing Guide
Fertilizing Checklist
Check fertilizer type; dilute correctly; apply during growing season; avoid contact with roots.
Fertilizing Method
Use a balanced, slow-release fertilizer in spring at half strength. Avoid fertilizing in winter. Apply every 6–8 weeks during active growth.
Common Problems & Solutions
Toxicity Warning
Cats
Non-toxicSarcocornia perennis is not known to be toxic to cats. It lacks compounds that are harmful to felines.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Dogs
Non-toxicSarcocornia perennis is not known to be toxic to dogs. It does not produce compounds that are harmful to canines.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Humans
Non-toxicSarcocornia perennis is not known to exhibit toxic effects in humans. It is generally considered safe for consumption in moderation.
🌿 Toxic Parts:
⚡ Toxic If:
if eaten
Frequently Asked Questions
Q: Is Sarcocornia perennis edible?
A: Yes, it is edible and often used in culinary dishes, particularly in coastal regions.
Q: Does this plant require a lot of water?
A: No, it is highly drought-tolerant and thrives in saline or brackish conditions.
Q: Can this plant be grown indoors?
A: It is best suited for outdoor cultivation in coastal or saline environments.
Quick Reference
| Family: | Amaranthaceae |
| Care: | easy |
| Light: | full sun |
| Water: | every 7–10 days during activ |
Get Expert Care Tips
Download the Plantious app for personalized care reminders and plant identification!
Google Play App Store
