Photo by Melody

PlantFiles: Guinea Henweed
Petiveria alliacea

Family: Phytolaccaceae
Genus: Petiveria (pet-ih-VER-ee-uh) (Info)
Species: alliacea (al-lee-AY-see-uh) (Info)

5 members have or want this plant for trade.


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

Unknown - Tell us

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

Unknown - Tell us

Bloom Color:
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Mid Fall


Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
From woody stem cuttings
From softwood cuttings

Seed Collecting:
Unknown - Tell us

Click thumbnail
to view:

By Monocromatico
Thumbnail #1 of Petiveria alliacea by Monocromatico

By artcons
Thumbnail #2 of Petiveria alliacea by artcons


1 positive
1 neutral
No negatives

Gardeners' Notes:

Positive artcons On Apr 22, 2008, artcons from Fort Lauderdale, FL (Zone 10b) wrote:

Guinea Henweed is a Florida native currently listed as imperiled. It prefers light to medium shade but will take some sun. It's a good butterfly attracting bush and is easy to propagate via cuttings. It takes trimming well. I have had mine grow to eight feet.

Neutral Monocromatico On Oct 25, 2006, Monocromatico from Rio de Janeiro
Brazil (Zone 11) wrote:

This is a tropical weed that lacks of any particular visual atraction and spreads on partially shaded places and fertile soil. However, its intentionally cultivated by some folk because of medicinal properties. Its also a sacred plant for the Candombl faith that imputs magical atributions to this plant.


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

Fort Lauderdale, Florida

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