Western Wheatgrass Plant Care
Elymus lanceolatus (Scribn. & J.G.Sm.) Gould
Updated · Sources · How we source care data
Elymus lanceolatus is a species of grass known by the common names thickspike wheatgrass and streamside wheatgrass. It is native to North America, where it is widespread and abundant in much of Canada and the western and central United States.
Every 7–14 days
Full sun
60–80°F
40–70%
At a glance
How do you care for Western Wheatgrass?
Water Western Wheatgrass every 7–14 days, letting the top layer of soil dry out between waterings, and give it full sun. It prefers temperatures of 60–80°F (16–27°C) and 40–70% humidity.
Where Is the Western Wheatgrass Native To?
What Is the Western Wheatgrass?
Western Wheatgrass (Elymus lanceolatus) belongs to the Poaceae family within the Elymus genus. Western Wheatgrass is native to North America. Western Wheatgrass is also known as Lance Wheatgrass.
Western Wheatgrass displays a tall, upright grass growth habit, reaching up to 5 ft tall with a spread of approximately 2 ft. Western Wheatgrass produces inflorescence with spikelets.
Leaf size: approximately 12 inches.
How Often Should You Water a Western Wheatgrass?
Elymus lanceolatus 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 Western Wheatgrass Need?
Western Wheatgrass thrives in full sun.
Light Requirement
Full sun
What Temperature and Humidity Does the Western Wheatgrass Prefer?
Elymus lanceolatus grows best at temperatures of 60–80°F. Western Wheatgrass prefers humidity levels of 40–70%.
Temperature
60–80°F
Humidity
40–70%
What Soil Mix Works Best for a Western Wheatgrass?
Well-draining loamy soil with good fertility. Good drainage is essential for Western Wheatgrass to prevent waterlogging, which leads to root rot and fungal issues.
How Do You Repot a Western Wheatgrass?
Divide and replant every 2-3 years. 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 Western Wheatgrass?
Western Wheatgrass can be propagated through division, seed sowing. Similar propagation techniques also apply to alaska wild rye plant care, which shares the same genus.
Is the Western Wheatgrass Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Western Wheatgrass, 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 Western Wheatgrass?
Western Wheatgrass is susceptible to aphids, grasshoppers, cutworms. 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 Western Wheatgrass Need?
Western Wheatgrass grows outdoors in USDA Zone 13a. It survives winters down to planting zone 13a. Western Wheatgrass is native to North America. In cooler regions, grow Western Wheatgrass as a houseplant or bring it indoors before the first frost.
Hardiness Zone
Zone 13a
Keep exploring plants
Western Wheatgrass 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 Elymus genus — compare its care with other Elymus species on PlantoScan.
Elymus is part of the Poaceae plant family — browse all Poaceae genera and species.
Western Wheatgrass thrives in bright light and direct sun — see other bright-light plants.
More Elymus Species
Other Elymus species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Elymus lanceolatus (Scribn. & J.G.Sm.) Gould, family Poaceae (first published in Madroño 10: 94 (1949)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Western Wheatgrass, 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 13a, 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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