Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Giant wildrye (Elymus condensatus) is a grass that grows in bunches or clumps, has a distinctive silver blue hue, and does not die back in any season. It grows in California and northern Mexico in coastal sage scrub, chaparral and woodlands, rarely in wetlands. 

This grass makes a nice drought-tolerant lawn substitute. It spreads by rhizomes (underground roots) but not rapidly; it can be easily contained in the area you want it to fill. 

It often hybridizes with Leymus triticoides, producing the common hybrid grass Leymus x multiflorus. The cultivar 'Canyon Prince' from the Channel Islands is often used in landscapes or gardens because it is somewhat smaller and more compact.

Giant wildrye supports butterflies and moths.

Plant type

Grass

Size

3 - 6 ft Tall
2 - 8 ft Wide

Form

Fountain, Weeping

Growth rate

Moderate

Dormancy

Evergreen

Fragrance

None

Calscape icon
Color

Brown

Special uses

Deer resistant, Groundcover, Lawn alternative

Sun

Full Sun

Water

Very Low

Summer irrigation

Max 1x / month once established

Ease of care

Easy

Cold tolerance

Tolerates cold to 15° F

Soil drainage

Fast, Medium, Slow

Soil description

Tolerant of sand and clay. Tolerates serpentine soil..
Soil PH: 5.0 - 8.0

Maintenance

Can be pruned back to the ground in summer if it becomes floppy. Remove rhizomes to control spread

Propagation

Can be propagated from rhizomes cut from the mother plant in Spring.  For propagating by seed: No treatment.

Sunset Zones

7*, 8, 9, 10, 11, 12, 14*, 15*, 16*, 17*, 18*, 19*, 20*, 21*, 22*, 23*, 24*

Site type

Near the coast, in dry slopes, open places as a component of coastal sage scrub or chaparral. In inland valleys and foothill areas it is associated with oak woodlands. It is also found in some high desert areas with Joshua tree woodland

Plant communities

Chaparral, Foothill Woodland, Joshua Tree Woodland, Southern Oak Woodland

California Encelia, California Sagebrush (Artemisia californica), Coyotebrush, Oaks, Salvia spp., Eriogonum spp.

Bats
Caterpillars
Butterflies

Butterflies and moths supported

2 confirmed and 10 likely

Confirmed Likely

Apamea cuculliformis

Mammifrontia rileyi

Glassy Borer

Apamea devastator

Chionodes figurella