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PlantFiles: African Couchgrass
Digitaria abyssinica

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Family: Poaceae (poh-AY-see-ee) (Info)
Genus: Digitaria (dij-ih-TARE-ree-uh) (Info)
Species: abyssinica (a-biss-IN-ee-kuh) (Info)

Synonym:Digitaria scalarum
Synonym:Panicum scalarum
Synonym:Syntherisma abyssinica

Category:
Perennials

Height:
12-18 in. (30-45 cm)
18-24 in. (45-60 cm)

Spacing:
6-9 in. (15-22 cm)

Hardiness:
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Full Sun

Danger:
N/A

Bloom Color:
Unknown - Tell us

Bloom Time:
Unknown - Tell us

Foliage:
Grown for foliage
Herbaceous

Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)

Patent Information:
Non-patented

Propagation Methods:
By dividing the rootball
From seed; direct sow after last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds

Profile:

No positives
No neutrals
1 negative

Gardeners' Notes:

RatingAuthorContent
Negative htop On Feb 6, 2005, htop from San Antonio, TX (Zone 8b) wrote:

My evaluation is based on the this Noxious Weed Information from the USDA:
"Alabama:
Digitaria scalarum (Schweinf.) Chiov.
African couch grass Class A noxious weed
California:
Digitaria scalarum (Schweinf.) Chiov.
African couch grass Quarantine
Florida:
Digitaria scalarum (Schweinf.) Chiov.
African couchgrass, fingergrass Noxious weed
Massachusetts:
Digitaria scalarum (Schweinf.) Chiov.
African couch grass Noxious weed
Minnesota:
Digitaria scalarum (Schweinf.) Chiov.
African couch grass Prohibited noxious weed
North Carolina:
Digitaria scalarum (Schweinf.) Chiov.
bluecouch Class A noxious weed
Oregon:
Digitaria scalarum (Schweinf.) Chiov.
African couch grass Quarantine
South Carolina:
Digitaria scalarum (Schweinf.) Chiov.
African couchgrass, fingergrass Plant pest
Vermont:
Digitaria scalarum (Schweinf.) Chiov.
African couch grass Class A noxious weed"

It is considered one of the worst weeds in Africa.



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