Saltmarsh Water-hemp (Amaranthus Cannabinus) is a annual herb in the Amaranthaceae family with moderate care difficulty. It requires high watering and full sun or partial shade light in USDA hardiness zones 7-10. This plant is safe for cats and dogs.

A native annual herb found in tidal river shores and brackish marshes, often mistaken for Amaranthus australis.

Saltmarsh Water-hemp

Saltmarsh Water-hemp

Amaranthus Cannabinus

A native annual herb found in tidal river shores and brackish marshes, often mistaken for Amaranthus australis.

Quick Facts

Type
herb
Lifecycle
annual
Care Difficulty
Moderate
Water Needs
High
Light
Full Sun, Partial Shade
Hardiness Zones
7-10

Safety

🐕
Pet Safe
👶
Child Safe
Non-Toxic

Growing Conditions

Soil Types:silty, loamy, saline
Indoor:No
Outdoor:Yes
Garden Use:erosion control, wildlife habitat

Care Calendar

Monthly care tasks for Saltmarsh Water-hemp

Jan
Prune
Feb
Fertilize
Mar
Repot
Apr
Water+
May
...
Jun
...
Jul
...
Aug
...
Sep
...
Oct
...
Nov
...
Dec
...

Expert Care Tips

Pro tips from botanists and plant experts

Watering Tip

Check soil moisture by inserting your finger 1 inch deep. Water only when the top layer feels dry to prevent overwatering.

Humidity Trick

Group plants together to create...

Growth Hack

Rotate your plant every...

Photo Gallery10+ photos

Saltmarsh Water-hemp
Saltmarsh Water-hemp detail

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Taxonomy

Family:Amaranthaceae
Genus:Amaranthus