

Thickspike Wheatgrass (subsp. lanceolatus) Elymus lanceolatus subsp. lanceolatus subspecies
Thickspike Wheatgrass (subsp. lanceolatus) is a perennial grass native to Alaska, Canada, and the lower 48 states. It grows to 2.3 ft and blooms Apr in part shade – shade, with brown fruit.
More about this plant
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. There are two subspecies, subsp. lanceolatus occurring throughout the species' range and subsp. psammophilus occurring in the Great Lakes region. Wikipedia →
Growing & care
USDA PLANTS · TRY- Sun
- Part shade – shade
- Soil & moisture
- Low moisture
- Soil pH
- 6.6–8.4
- Fertility need
- Medium
- Adapts to
- Coarse (sandy), Medium (loam), Fine (clay)
- Hardiness
- USDA zone 4+
- Height
- 2.3 ft
- Spread
- Rapid
- Growth rate
- Moderate
- Growth form
- Rhizomatous
- Lifespan
- Perennial · moderate
- Foliage
- fine texture
- Active growth
- Spring & summer
- Fruit
- Brown
- Propagate by
- Seed
- Seed starting
- No stratification needed
- Seeds ripen
- Spring – Summer seed-collection / harvest window
- In the trade
- Routinely available
- Deer browsing
- Medium moderately palatable
- Resprouts if cut
- No
Sow timing keys off your local last- and first-frost dates.
Wildlife & pollinators
How pollinator value is scored →❧ Caterpillar hosts ~31 caterpillar species
Elymus supports ~31 caterpillar species.
Native butterfly & moth caterpillars are the base of the terrestrial food web — most songbirds rear their young almost entirely on them. As a host for native Lepidoptera this is a strong genus.
Recorded feeding on Elymus in North America, including:
+ 8 more species → ↑ show fewer
Sources for this entry (23) Open & cited
Cite this page Open data, please attribute
PlantKey’s data is open under CC BY-SA 4.0 — free to reuse and adapt, with attribution and the same licence. Photos keep their own per-image licence + credit (see Sources above).
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