perennialN. America Native

Starrush Whitetop

The Story

Plant Bio

Rhynchospora colorata is a perennial sedge that forms clumps of grass-like green leaves. It is primarily grown for its distinctive flowerheads, which feature a central button-like cluster of tiny flowers surrounded by long, drooping, star-like white bracts.

This plant features distinctive white flower spikes and thrives in wetland areas.

Uses & Benefits:

Dichromena colorata offers striking, variegated foliage that adds tropical flair to gardens and water features.

Its dense growth can serve as a natural screen or border in landscape designs.

Provides habitat and nectar for pollinators like butterflies and bees.

Essentials

At a Glance

Plant Type

Perennial

Height

18 inches

Width

12 inches

Light

Full Sun, Partial Sun

Zones

7, 8, 9, 10

Water

Consistently moist to wet

Humidity

High humidity preferred

Lifespan

Perennial

Native To

Southeastern US to South America

Toxicity

Non-toxic to pets and humans

Bloom period

Late summer – Early fall

In flower about 2 months of the year

Planting

How to Grow

Tuck seeds or divisions into moist soil in spring for best germination.
Mist cuttings regularly to maintain humidity and encourage root growth.
Ensure consistent watering to keep soil moist but not waterlogged.
Apply a balanced fertilizer monthly during active growth periods.
Prune dead or damaged foliage in early spring to promote healthy growth.
Mulch around the base to retain soil moisture and suppress weeds.

Pro Tip

Plant Dichromena colorata in full sun for vibrant foliage and optimal growth.

Keep It Thriving

Care Guide

Do

Water regularly to keep soil moist 🌱
Provide full sun for best color
Mulch to retain soil moisture

Don't

Avoid overwatering to prevent root rot ❌
Don't plant in overly shaded areas
Refrain from fertilizing during dormancy

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Vibrant water feature borderTropical garden accentBold foliage focal point

Companion Plants

Canna liliesElephant ears Banana plants Giant reed Sword ferns

Multiply

Propagation Methods

Good to Know

Common Questions

Starrush Whitetop questions

What zones can Starrush Whitetop grow in?

Starrush Whitetop is hardy in USDA Zones 7–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Starrush Whitetop deer resistant?

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

When does Starrush Whitetop bloom?

Starrush Whitetop typically blooms in late summer through early fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Starrush Whitetop need full sun?

Starrush Whitetop does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.