grass

Banana Boat Sedge

Carex siderosticta 'Banana Boat'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Grass

Height

12 inches

Width

18 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Moist

Humidity

Moderate

Lifespan

Perennial

Native To

Asia

Toxicity

Non-toxic

The Story

Plant Bio

Carex siderosticta 'Banana Boat' is a perennial sedge featuring clumping growth with narrow, arching leaves that display variegated green and yellow stripes, and produces small, inconspicuous flowers typical of the genus. This cultivar is distinguished by its striking variegation and vigorous, upright habit, making it an attractive addition to shaded borders and container plantings.

Bloom Period:

EarlyLate

Uses & Benefits:

Provides lush, fine-textured greenery that softens garden borders and naturalizes wet areas.

Tolerant of wet soils, ideal for erosion control and moisture retention.

Supports local biodiversity by providing habitat for beneficial insects and ground cover for soil health.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Tuck seeds or divisions into prepared soil in early spring.
Water regularly to keep soil moist but not waterlogged.
Fertilize with a balanced fertilizer in spring for best growth.
Mulch around plants to retain moisture and suppress weeds.
Divide clumps every 3-4 years in early spring to maintain vigor.
Transplant in early spring or fall for best establishment.

Pro Tip

Plant in moist, well-drained soil with partial shade for optimal growth.

Keep It Thriving

Care Guide

Do

Water consistently to keep soil moist 🌱
Mulch to conserve moisture and suppress weeds
Divide every few years to prevent overcrowding
Plant in partial shade to protect from harsh sun

Don't

Allow soil to dry out completely ❌
Over-fertilize, which can cause legginess
Plant in full sun, which may scorch the foliage
Ignore weed control around the base

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Divide
Mulch
Plant
Spring Cleanup

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Wet border with fine-textured greeneryPart shade groundcover under treesErosion control on moist slopes

Companion Plants

Hosta Ferns Ligularia Astilbe Japanese Iris

Multiply

Propagation Methods

Good to Know

Common Questions

Banana Boat Sedge questions

What zones can Banana Boat Sedge grow in?

Banana Boat Sedge is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Banana Boat Sedge deer resistant?

Yes — Banana Boat Sedge is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Banana Boat Sedge bloom?

Banana Boat Sedge typically blooms in spring through late fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Banana Boat Sedge need full sun?

Banana Boat Sedge does best in part shade.