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Carex leavenworthii (Leavenworth's Sedge)
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Grasses

Carex leavenworthii

Leavenworth's Sedge

Cyperaceae
Central and eastern United States — from Pennsylvania south to Florida and west to Kansas and Texas

At a Glance

TypeSedge
HabitClumping
FoliageSemi-evergreen
Height6-12 inches (15-30 cm)
Width8-14 inches (20-35 cm)
Maturity1 years

Growing Zones

USDA Hardiness Zones

4 - 9
Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9
These zones indicate the coldest temperatures this plant can typically survive.
What's my zone? →
Frost Tolerancehardy

Key Features

Deer ResistantDrought TolerantContainer Friendly
Native to North America
Maintenancevery low

Overview

Carex leavenworthii is Leavenworth's sedge — a leading native sedge for lawn replacement, growing 6–12 inches (15–30 cm) tall and 8–14 inches (20–35 cm) wide. Named after Melines Leavenworth, the 19th-century botanist. Very narrow-textured medium green foliage forms a dense low tuft that, when mass-planted at 6–8 inch (15–20 cm) spacing, creates a lawn-like carpet. The key advantage: the planting can be mowed 2–3 times per year (compared to weekly mowing for turf grass) or left completely unmowed for a naturalistic meadow sedge effect. Very adaptable: sun to shade, any soil, drought-tolerant once established. Semi-evergreen — stays green into mild winters. The clumping habit means individual plants eventually touch and merge rather than spreading aggressively by stolons. A practical native lawn alternative for the central and eastern US. Deer avoid sedge foliage.

Native Range

Carex leavenworthii is native to the central and eastern United States — from Pennsylvania south to Florida and west to Kansas and Texas.

Suggested Uses

Used as a native lawn replacement — the no-mow native lawn. Mass plant at 6–8 inch spacing. Tolerates light foot traffic. Any light condition. A practical native sedge for replacing turf grass.

How to Identify

Identified by a dense low (6–12 inches / 15–30 cm) tuft of very narrow-textured medium green sedge foliage. The very narrow leaf width (narrower than most sedges) and the dense, low, lawn-like growth form are the species traits. Tolerates mowing. A practical native lawn sedge.

Appearance

Size & Dimensions

Height6" - 1'
Width/Spread8" - 1'2"

Reaches mature size in approximately 1 years

Colors

Flower Colors

green
brown

Foliage Colors

green

Fall Foliage Colors

semi evergreen

Bloom Information

Bloom Period

~2 weeks
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Spring
Inconspicuous spikelets in April and May. The narrow-textured lawn-like foliage is the display.

Detailed Descriptions

Flower Description

Green to brown, tiny, inconspicuous spikelets

Foliage Description

Medium green, very narrow, forming a dense low tuft

Growing Conditions

Sun Requirements

Partial ShadeFull ShadeFull Sun
Requires 2-8 hours of direct sunlight daily
• Full Sun: 6+ hours of direct sunlight
• Partial Shade: 3-6 hours of direct sunlight
• Full Shade: Less than 3 hours of direct sunlight

Soil Requirements

pH Range5.5 - 7.5(Neutral)
357912
Soil Types
loamclaysand
Drainageaverage

Water & Climate

Water Needs

Low

Frost Tolerance

hardy

Time to Maturity

1 year

Drought Tolerance

Drought tolerant when established

Care & Maintenance

Care Guide

Plant in any light. Any soil. Drought-tolerant. Mow 2–3 times per year for a lawn look, or leave unmowed. Space 6–8 inches apart for lawn effect. Hardy to zone 4.

Pruning

Optional mowing 2–3 times per year at 3–4 inches height. Or leave completely unmowed.

Pruning Schedule

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early spring

Maintenance Level

very low

Container Growing

✓ Suitable for container growing

Minimum container size: 1 gallons

⚠️ Toxicity Warning

Non-toxic