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)

Category:

Tropicals and Tender Perennials

Water Requirements:

Unknown - Tell us

Sun Exposure:

Sun to Partial Shade

Light Shade

Foliage:

Deciduous

Herbaceous

Velvet/Fuzzy

Foliage Color:

Blue-Green

Orange/Apricot

Height:

36-48 in. (90-120 cm)

Spacing:

24-36 in. (60-90 cm)

Hardiness:

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)

Where to Grow:

Unknown - Tell us

Danger:

N/A

Bloom Color:

Pink

Bloom Characteristics:

Unknown - Tell us

Bloom Size:

Unknown - Tell us

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

Regional

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

Parrish, Florida

Sebring, Florida

Tampa, Florida

Baton Rouge, Louisiana

show all

Gardeners' Notes:

2
positives
0
neutrals
5
negatives
RatingContent
Negative

On Mar 31, 2018, 2HobbyFarmers from Parrish, FL wrote:

Caesar Weed is a noxious, invasive exotic. I would not give this to my worst enemy. We recently bought a 13 acre farm which is absolutely covered by this weed. It thrives in full sun to moderate shade, grows up to 7 feet tall, and is covered from top to bottom with burrs. If you want 50 seeds, just walk past a plant. They grow so densely that they choke out native plants on the ground. It's probably an annual in colder climates, but here in central Florida the root persists and will grow a new stalk if mowed. It also shows some resistance to 2,4,D herbicide, where the root will survive spray concentrations strong enough to kill the stalk. Mature plants that have been in place for a couple years have a strong, somewhat laterally growing taproot which can be quite hard to pull even ou... read more

Negative

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.

Positive

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.

Positive

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

This weed also found in Lake County Florida

Negative

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.

Negative

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.

Negative

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.

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