Schoenoplectus acutus

Common Names

Hardstem Bulrush, Tule, Great Bulrush, Common Tule, Hard-Stem Bulrush, Hard-Stemmed Bulrush

Summary

Hardstem bulrush is a North American wetland plant that forms tall, dense stands with thick, round green stems and brown spikelet clusters, reaching 1–3 meters in height and spreading via rhizomes. It inhabits marshes, swamps, lake shores, and other wetlands, tolerating standing water from 10 cm to over 1.5 meters in fresh or brackish conditions, and has two recognized varieties, var. acutus and var. occidentalis.

Propagation occurs by seed and rhizomes; seeds are wind- and water-dispersed and germinate best on moist bare soil, with installation possible by rhizomes, seedlings, or direct seed. The plant's dense root system stabilizes soils and provides erosion control; dense tule stands offer nesting cover for waterfowl, and seeds feed birds, while roots serve as food for muskrats and beavers. It can resprout after fire and is used in restoration, wetland habitat creation, and wastewater filtration.

Lifecycle

Perennial

Height

3.5-10 feet

Spread

2-6 feet

Hardiness Zones

Zones 3-9

Sunlight Requirements

Ideally Full Sun, tolerates Partial Sun and Shade.

Soil Type

Moist, poorly drained marsh soils

Soil Drainage

Wet, poorly drained soils

Soil pH

5-8

Acidic to alkaline

Bloom Color

Brown

Bloom Time

Spring to Summer

Foliage Color

gray-green to dark-green

Fall Foliage Color

No fall foliage color change

Leaf Lifecycle

Deciduous

Growth Rate

Fast

Seasons of Interest

Spring, Summer, and Fall

Propagation Methods

Seeds and rhizomes (division-like propagation)

Attracts Wildlife

Attracts birds