How to Grow and Care for Foothill Sedge

A member of the Cyperaceae family, foothill sedge (Carex tumulicola) is known as the splitawn sedge, slender sedge, or previously Berkeley sedge. With more than 1500 species of Carex growing in moist to wet areas around the world, it can make it challenging to identify individual species. Unlike many other members of this genus, however, foothill sedge is not a wetland plant.

Native to Western North America, this semi-deciduous rhizomatous evergreen is winter hardy in Zones 8 through 10 where it thrives in open woods, meadows and coastal prairies. It ranges from the central coast of California to Oregon and Washington at elevations from sea level to 4,000 feet.

Narrow grass-like moderately green leaves are 18 inches long and one-eighth inch wide. Green-brown or cream blooms come in April and May atop the stems that rise one to two feet tall upon arching clumps that spread two to three feet wide.

This clump-forming plant is commonly grown for ornamental purposes in meadow gardens settings and in low-maintenance yards that need to conserve water.

Botanical NameCarex tumulicola
Common NamesFoothill Sedge, Slender Sedge, Splitawn Sedge 
Plant Type Semi-deciduous rhizomatous evergreen
Mature SizeOne to two feet tall and two to three feet wide
Sun ExposurePart shade to full shade
Soil TypeAdaptable
Soil pHAcidic to neutral
Bloom TimeSpring and summer
Flower ColorBrown or cream
Hardiness Zones8, 9, 10
Native AreaWestern North America

Foothill Sedge Care

Space 12-15 inches apart for fast spread. Space 15-18 inches or 18-24 inches for slower spread. Plant in groups as a groundcover in a rain garden or between trees or chaparral shrubs where it will tolerate deer, drought, heavy shade, erosion, and sometimes wet soil.

While it is ornamentally beautiful, it can also be used as a lawn substitute and mowed in areas that are difficult to landscape (it is also tolerant of trampling). The evergreen’s other practical purposes are its ability to stabilize soil and attract birds that are fond of its seeds.

The Spruce / Krystal Slagle

The Spruce / Krystal Slagle

Light

Foothill Sedge prefers part shade to full shade though it will tolerate full sun along the West coast.

Soil

This species will establish in any medium moisture soil. One of the advantages of foothill sedge is that it can grow in most soils and isn’t fussy about pH or nutrient levels.

Water

Foothill Sedge requires some moisture but can still spread slowly by rhizomes through short periods of dryness.

When established, water once a week at most. Because it is fairly drought-tolerant, this sedge only requires medium regular watering.

Temperature and Humidity

Foothill sedge will not survive winter north of Zone 8 but can be grown as an annual in these cooler climates.

Fertilizer

Part of the appeal of foothill sedge is it’s low-maintenance requirements. This is also true when it comes to feeding. They don’t need a lot of nutrients and will manage without fertilization in all but the poorest of soils. In these instances, they will only need occasional and very light feeding. This is another reason they appeal to some people as a ground cover. They won’t need lots of nitrogen-rich fertilizer in the way a standard lawn grass will.

Propagating Foothill Sedge

The plant will spread naturally by rhizomes or self-seeding to form a groundcover. It’s very easy to propagate by the division of existing clumps in the spring.

Common Pests and Plant Diseases 

While occasionally leaf spot, smut and rust may occur, there are no serious pest or disease issues for Foothill Sedge.

Disclaimer: Curated and re-published here. We do not claim anything as we translated and re-published using google translator. All images and Tattoo Design ideas shared only for information purpose.

Related Posts