Rhynchospora colorata (Dichromena latifolia) – White-Top Sedge (White Star Grass)

Crisp, showy, and resilient — Dichromena latifolia turns wet edges into luminous, easy-care plantings.

Short Product Description

White-Top Sedge (Dichromena latifolia)—a native, moisture-loving sedge with starry white bracts in summer–fall; ideal for rain gardens, bioswales, and pond margins; low maintenance; Zones 7–11.

North American Native
Hardiness Zone – 7–11
Sun – Full sun to part shade
Moisture – Moist to wet (tolerates shallow standing water)
Size – 12–24″ height (to 18–30″ in bloom)

Available: #1 Gallon, 4″, DP-50 Plug

Comments

  • Showy white, star-like bracts
  • Excellent for rain gardens and pond edges

Description

Product Description

Dichromena latifolia (Rhynchospora Colorata) (White-Top Sedge, White Star Grass) is a striking, moisture-loving sedge famed for its starry white bracts that surround small, tan flower clusters from summer into early fall. Fine, bright-green leaves form tidy clumps that bring clean texture to pond margins, rain gardens, and wet swales. Built for moist to wet soils—and tolerant of shallow standing water—White-Top Sedge offers long-season brightness, habitat value, and minimal upkeep in warm climates.

Quick-Glance Specs

Attribute Details
Botanical Name Dichromena latifolia (Rhynchospora Colorata)
Common Name White-Top Sedge
Plant Type Perennial sedge (Cyperaceae)
Native/Non-native Native to the Southeastern U.S.
Hardiness Zone 7–11
Sun Exposure Full sun to part shade (best bloom in sun)
Moisture Moist to wet; tolerates shallow standing water
Mature Height 12–24″ foliage; 18–30″ in bloom
Mature Spread 12–24″ clump (short rhizomes; non-aggressive)
Growth Habit Clumping; slowly colony-forming in ideal conditions
Growth Rate Moderate
Fragrance None
Bloom Time Summer to early fall (white star-like bracts with green midribs)
Seasonal Interest Summer–fall display; semi-evergreen in warm zones
Foliage & Features Fine green blades; showy white, petal-like bracts around inflorescences
Landscape Features Stormwater performance; erosion control; wildlife cover
Landscape Uses Pond/stream margins, rain gardens, bioswales, wet meadows, containers
Soil Sandy to loamy; tolerates clay if not stagnant
Water Needs Medium to wet
Maintenance Low; comb or cut back old foliage late winter/early spring
Deer/Pest Resistance Generally deer resistant; few serious pests
Container Friendly Excellent in large, moisture-retentive containers
Recommended Spacing 12–18″ for cohesive, sparkling drifts

Care & Growing Information

  • Site & Light: Plant in full sun for the strongest bloom and tight habit; part shade acceptable, especially in heat.
  • Soil & Water: Prefers moist to saturated soils; thrives at pond shoulders, swales, and rain-garden basins. Handles 1–3″ of periodic standing water; avoid chronically stagnant, anoxic conditions.
  • Planting: Set crowns at or just above grade along shorelines; irrigate regularly the first season.
  • Maintenance: Low-care. Leave bracts for seasonal interest; comb or cut back tired foliage in late winter/early spring. Minimal fertilizer—overfeeding can relax the form.
  • Design Tips: Use as a bright edging along water paths, or mass for a white “star field” effect among moisture-loving irises, rushes, and native sedges.

Key Features

  • Distinctive white star bracts for high visual impact
  • Moist–wet soil specialist; tolerates shallow standing water
  • Useful for stormwater plantings and light erosion control
  • Deer resistant and easy to maintain
  • Semi-evergreen texture in warm climates

Problems

  • Few notable issues. Flopping may occur in deep shade or overly rich soils; provide sun and moderate fertility. Tip browning can occur if allowed to dry out—maintain even moisture.

Uses in the Landscape

  • Rain gardens, bioswales, and stormwater forebays
  • Pond/stream margins and wetland edges
  • Moist meadows and naturalized low spots
  • Containers near water features for a crisp, modern accent

Availability / Ordering

  • Sizes Offered: #1 Gallon, 4″, DP-50 Plug
  • Recommended Spacing: 12–18″ for sparkling white drifts and good airflow.

Why You’ll Love It

  • Eye-catching white “flowers” (bracts) that brighten wet areas
  • Site-smart performer for rain gardens and shorelines
  • Minimal upkeep—annual comb-out or cutback keeps plants fresh

Quick Highlights

A moisture-loving sedge with starry white bracts—White-Top Sedge delivers bright seasonal interest, stormwater performance, and low maintenance for sunny pond edges and rain gardens.

Additional information

Size

#1 Gallon, 4", DP50 Plug