- Streambank wheatgrass also is known as Thickspike Wheatgrass and Northern wheatgrass.
- Thickspike wheatgrass is often used in urban areas, where irrigation water is limited, to provide ground cover and stabilize ditch banks, dikes, and roadsides.
Though thickspike wheatgrass does not compete well with aggressive, introduced grasses while it is establishing, it is quite compatible with native species that develop more slowly, such as bluebunch wheatgrass, western wheatgrass, and needlegrass (Stipa spp.) species. It performs especially well in bluebunch wheatgrass, ponderosa pine (Pinus ponderosa), and Douglas-fir roadside habitats.
Thickspike wheatgrass's sod-forming ability, which allows it to crowd out weeds and resist brush invasion, makes it especially desirable for long-term weed management. Studies have reported that thickspike wheatgrass, including its cultivars, is effective at controlling Russian knapweed (Acroptilon repens) and diffuse knapweed (Centaurea diffusa).
Thickspike wheatgrass is susceptible to damage by the Russian wheat aphid and, according to a Utah study, may be even more susceptible after spring grazing. Grasshoppers may thin thickspike wheatgrass stands.