Photo by Melody

PlantFiles: Star Grass, Star Rush, White Topped Sedge
Rhynchospora colorata

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Family: Cyperaceae (sy-peer-AY-see-ee) (Info)
Genus: Rhynchospora (RIN-koh-SPOR-uh) (Info)
Species: colorata (kol-oh-RAY-tuh) (Info)

Synonym:Dichromena colorata

7 members have or want this plant for trade.

Category:
Ponds and Aquatics

Height:
24-36 in. (60-90 cm)

Spacing:
36-48 in. (90-120 cm)

Hardiness:
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)

Sun Exposure:
Sun to Partial Shade

Danger:
N/A

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall
Blooms all year

Foliage:
Herbaceous

Other details:
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
4.6 to 5.0 (highly acidic)
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Unknown - Tell us

Propagation Methods:
By dividing the rootball
By dividing rhizomes, tubers, corms or bulbs (including offsets)

Seed Collecting:
Collect seedhead/pod when flowers fade; allow to dry

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By Floridian
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There are a total of 10 photos.
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Profile:

2 positives
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive Kiyzersoze On May 26, 2010, Kiyzersoze from Coral Springs, FL (Zone 10b) wrote:

Growing on my canal bank this year. So far it doesn't seem like it will be invasive, staying close to the bank.

Positive NativePlantFan9 On Mar 28, 2005, NativePlantFan9 from Boca Raton, FL (Zone 10a) wrote:

White-tops, Star-rush, or White-topped Sedge is native to wet habitats, moist or wet fields, marshes, meadows, and swampsides and open, moist, wet habitats from Virginia south along the coastal plain throughout Florida and the Keys, west along the coastal plain and lowlands into Texas and the Lower Mississippi Valley in Arkansas.

This is a short, upright sedge with drooping, thin leaves in a star-shaped cluster with a bold white center.

This species is often confused with a very similar species, Giant or Swamp Whitetop Sedge (Rhynchospora latifolia). However, R. latifolia is taller and larger (with a larger white center) than this species.

Regional...

This plant has been said to grow in the following regions:

Clayton, California
Vista, California
Fort Lauderdale, Florida
Key West, Florida
Lutz, Florida
Orlando, Florida
Pompano Beach, Florida
Sarasota, Florida
Evans, Georgia
Harrisburg, North Carolina
Austin, Texas
Houston, Texas



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