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Caesarweed, Caesar Weed, Congo Jute

Urena lobata

Family: Malvaceae (mal-VAY-see-ee) (Info)
Genus: Urena (ur-EE-na) (Info)
Species: lobata (low-BAH-tuh) (Info)


Tropicals and Tender Perennials

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Unknown - Tell us

Where to Grow:

Unknown - Tell us


36-48 in. (90-120 cm)


24-36 in. (60-90 cm)


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)

USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:

Sun to Partial Shade

Light Shade



Bloom Color:


Bloom Time:

Mid Spring

Late Spring/Early Summer

Mid Summer

Late Summer/Early Fall

Mid Fall





Other details:

May be a noxious weed or invasive

Soil pH requirements:

5.6 to 6.0 (acidic)

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:

Unknown - Tell us

Propagation Methods:

From seed; direct sow outdoors in fall

Seed Collecting:

Unknown - Tell us


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

Bartow, Florida

Boca Raton, Florida

Bradenton, Florida

Clearwater, Florida

Fort Lauderdale, Florida

Jupiter, Florida

Lakeland, Florida

Largo, Florida

Sebring, Florida

Tampa, Florida

Baton Rouge, Louisiana

show all

Gardeners' Notes:


On Mar 29, 2016, coriaceous from ROSLINDALE, MA wrote:

The Florida Exotic Pest Plant Council has now listed this weed as a Category l invasive. That means that it has been proven to alter native plant communities by displacing native species, changing community structures or ecological functions, or hybridizing with natives.

It is widely distributed in Florida, with documented populations in Louisiana, Alabama, and South Carolina. (BONAP)

Governments have declared this a noxious weed in Hawaii, Cuba, and Fiji.

This weed is now pan-tropical in its distribution. It is believed to have originated in south Asia or tropical Africa.


On Mar 22, 2013, ransom3 from Zephyrhills, FL wrote:

It is pretty. I have no trouble in getting rid of any stands of it that become problematic. Just a wildflower.


On Jan 19, 2010, matered from Eustis, FL wrote:

This weed also found in Lake County Florida


On Sep 29, 2009, ChayaMan from Largo, FL wrote:

Not recommended because of Cat II invasive status. The hooked, 5-lobed seed capsule is easily brushed off and transported by birds, squirrels, pets, gardeners, etc. Germinates in an eyeblink and fruits year-round (even in Winter). Potentially as invasive as Schinus terebinthifolius (Brazilian Pepper), although not as aggressively rugged. Height in Zone 9b-10x can reach 10 feet and can self-sow to form a thick hedge. Some anecdotal food, utilitarian and medicinal value, which does not offset its invasive tendencies, IMO. As with S. terebinthifolius, pull and burn, where possible.


On Oct 12, 2006, MotherNature4 from Bartow, FL (Zone 9a) wrote:

This plant is listed as a Category II Invasive Plant by the Florida Exotic Pest Plant Council. This listing is for the entire state of Florida. It should be listed for 8b and 9a.


On Jan 27, 2005, xyris from Sebring, FL (Zone 9b) wrote:

A weed in my garden, but pretty easy to control. Seedings recognizable by the unique leaf shape, and plant easy to pull up even when mature. The flowers are too small to be of ornamental value, even though attractive up-close.