Oxalis/Creeping Wood Sorrel
Oxalis (O. corniculata) is a broadleaf, perennial weed with pale green, clover-like leaves divided into three heart-shaped leaflets. Small, bright yellow, five-petaled flowers can appear year round, but form mostly in spring. Oxalis can grow 4 to 12 inches tall and spreads rapidly by seed and rooting stems. Stems are covered with thin, fine hairs. Oxalis is also called False Shamrock and Sourgrass.
The weed thrives in a wide range of conditions, including moist, well-fertilized lawns or in dry, open spaces. A similar species of Oxalis, or Bermuda Buttercup (O. pes-caprae), is sometimes found in shady areas of cooler climates. It is taller and more upright, and spreads by small underground bulblets. The leaves are often spotted purple. It is very difficult to control.
Location
Oxalis is found throughout the United States.
Related or Similar Plants
Shamrocks, Sourgrass, O. pes-caprae, Bermuda Buttercup, Clover.
Cultural Solutions
- Keep lawns properly fertilized and healthy to resist invasion.
- Hand-pull or hoe when young.
All-In-One Lawn Weed & Crabgrass Killer Ready-To-Spray-32 oz. Ready-To-Spray
All-In-One Lawn Weed & Crabgrass Killer Ready-To-Spray-32 oz. Ready-To-Spray
- Kills over 200 listed broadleaf weeds like Dandelion and Clover
- PLUS controls listed grassy weeds like Crabgrass
- Won't harm lawns when applied as directed*
*When used as directed. Not for use on St. Augustinegrass (including Floratam variety), Bahiagrass, Carpetgrass, Centipedegrass or Dichondra.
3-In-1 Weed And Feed For Southern Lawns-12.5 lb. Bag
3-In-1 Weed And Feed For Southern Lawns-12.5 lb. Bag
- Kills listed weeds including Dollarweed, Dandelion and Clover.
- Feeds, greens and strengthens your lawn.
- Prevents broadleaf and grassy weeds PLUS CRABGRASS up to 6 MONTHS.
Southern Weed Killer For Lawns-32 oz. Ready-To-Spray
Southern Weed Killer For Lawns-32 oz. Ready-To-Spray
- Kills 200+ broadleaf weeds in St. Augustinegrass, Centipedegrass and other Southern lawns
- One simple application kills Dandelions, Clover and more
- Rainproof in one hour
- 32 oz. Ready-To-Spray treats up to 16,000 sq. ft.
- 40 oz. Concentrate treats up to 20,000 sq. ft.
*Not for use on Dichondra, Carpetgrass, Floratam variety of St. Augustinegrass or desirable Clovers.
