Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

California Bulrush (Schoenoplectus californicus) is a native perennial herb in the Cyperaceae (Sedge) family that grows in northern, southern and central California. It is also found in Oregon and across the southern states to Florida. It is a definitive species of freshwater or brackish marshes, found in perennially inundated areas such as lakes and ponds, but generally not in flowing water. It tolerates standing water several feet deep where it creates sometimes massive patches. It occurs at elevations from sea level to 4,000 feet, often but not always near the coast. It is an aggressive spreader from its rhizomes and will quickly occupy all suitable area.

Plant type

Grass

Size

6 - 12 ft Tall

Form

Upright

Growth rate

Fast, Moderate

Dormancy

Evergreen

Fragrance

None

Calscape icon
Color

Brown

Flowering season

Spring

Special uses

Water features or wet habitats, Deer resistant

Sun

Full Sun

Water

Moderate, High

Summer irrigation

Keep moist

Cold tolerance

Tolerates cold to 20° F

Soil drainage

Standing, Standing

Soil description

Tolerates any saturated or inundated soil.
Soil PH: 5.0 - 9.0

Maintenance

Pruning is usually not required, but spreading rhizomes may need to be removed periodically to restrain its aggressive tendencies

Site type

Shallow freshwater or brackish marsh on the margin of lakes or ponds, estuaries, large springs or seeps, and in drainage ditches

Plant communities

Freshwater Marsh, Wetland-Riparian

Due to its spreading tendency, use with caution in garden ponds or bioswales. Use with other marsh plants such as Carex spp., Spikerush (Eleocharis spp.), Rush (Juncus spp.), Saltmarsh Fleabane (Pluchea odorata), Arrowhead (Sagittaria spp.), Willow (Salix spp.), and Cattail (Typha spp.)

Bats
Caterpillars
Butterflies

Butterflies and moths supported

0 confirmed and 5 likely

Confirmed Likely

Mottled Marble

Bactra furfurana

Bactra maiorina

Javelin Moth

Bactra verutana