Also known as Arrow-Grass · Common Arrowgrass · Common Bog Arrowgrass
Safety note: This plant may be toxic to humans and pets. See toxicity details.
Seaside Arrowgrass (Triglochin maritima) is a perennial wetland herb with grass-like leaves and a tall flowering stalk, thriving in saline environments.
At-a-glance light, water, soil, and growing conditions from plant data
High
75% intensity
Requires full sun exposure for optimal growth and flowering.
High
75% intensity
Prefers consistently moist to wet soil; can tolerate shallow standing water.
Clay, Loam, Sandy; Tolerant of saline soils
50% intensity
Moderate
50% intensity
Adaptable to a range of temperatures but prefers temperate climates. Protect from extreme frost.
Aquatic
50% intensity
Very Low
10% intensity
Requires minimal feeding; over-fertilization can be detrimental.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | Yes 5/5 intensity |
| Toxic for pets | Yes 5/5 intensity |
| Edible | No |
Contains toxic glycosides that can release cyanide.
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Seaside Arrowgrass thrives in consistently moist to wet conditions, mimicking its natural coastal habitat. Water regularly, ensuring the soil remains saturated or submerged.
Avoid letting the soil dry out completely, especially during warmer months. Ideal for bog gardens or containers placed in shallow water.
Pruning is generally not required for Seaside Arrowgrass unless removing dead or damaged foliage. Trim away any brown or yellowing leaves at the base of the plant as needed.
This helps maintain a tidy appearance and prevents potential disease spread. Minimal intervention is best for this hardy species.
Propagate Seaside Arrowgrass by seed or division. Sow seeds in moist, saline conditions in spring. For division, carefully separate established clumps in spring, ensuring each division has roots and shoots.
This method is effective for increasing plant numbers and maintaining desirable characteristics.
Repotting is infrequent and typically only necessary if the plant becomes overcrowded or outgrows its container.
If grown in a pot, repot into a larger container in spring, using a well-draining, sandy, or loamy soil mix. Ensure the new pot allows for consistent moisture or can be placed in shallow water.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Seaside Arrowgrass (Triglochin maritima)
Where Seaside Arrowgrass (Triglochin maritima) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Liliopsida |
| Order | Alismatales |
| Family | Juncaginaceae |
| Genus | Triglochin |
| Species | Triglochin maritima |
Similar in genus Triglochin
Answers based on plant encyclopedia data
