Seeds are spread by movement of soil and water and lawn mowers. Oxalis / ˈ ɒ k s ə l ɪ s / (American English) or / ɒ k s ˈ ɑː l ɪ s / (British English) is a large genus of flowering plants in the wood-sorrel family Oxalidaceae, comprising about 570 species. Oxalis is not overly fussy with its light requirements. For example, purple shamrock, or oxalis triangularis, propagation is done by seed or dividing, notes North Carolina Cooperative Extension. 14 bright yellow leaves at times infused with coppery orange and red. After 2 weeks, carefully walk around the lawn looking for Oxalis which hasn’t yet died. Species. Oxalis grows from bulbs, and like all bulbs, requires a period of dormancy each year. Don't throw the plant in the garbage when it appears to be dying because with proper care, it will come back better than ever. However, it will most often invade lawns that are thin and weak from improper care. Creeping oxalis is a common weed of lawns and because the stems creep under lawn runners of buffalo, kikuyu and couch, it is hard to eradicate. vulcanicola - O. spiralis subsp. After the first herbicide treatment is completed, leave the lawn for 2 weeks to wait for results. The persistent plant is found in many parts of the world and rises from stem fragments and tiny bulbils. A purple-leaved colour variant is quite common; O. debilis has deep pink flowers from July to September; O. latifolia also has a deep pink flower, borne May to September. However for a good looking plant you're going to want an area which receives bright light, or even some sun for a few hours a day. O. spiralis subsp. Appearance. Plus, it's easy to care for indoors and out. Oxalis looks a bit like a miniature clover plant, but it bears tiny yellow flowers.It is occasionally grown as a groundcover but to most gardeners it is a tenacious and annoying weed. Succulent subshrub 18. Types of Oxalis While there are over 800 different species of oxalis, two are most commonly found in lawns throughout the U.S. Yellow wood sorrel (Oxalis stricta) has pale green leaves, grows in an upright clump, and is most commonly mistaken for clover. vulcanicola is a trailing, mound-forming, tender perennial, often grown as an annual, with succulent, red-flushed stems, succulent, mid-green leaves with three leaflets, red-flushed in full sun, and small, single, yellow flowers from mid-spring into early autumn. Multiple Oxalis herbicide treatments. The species with purple leaves will take less bright areas than its all green leaf cousins. Yellow flowers mid to late season. Frost hardy to 26 oF recovers from 20 oF an easy pot plant anywhere. Oxalis Oxalis. Oxalis corniculata has a creeping habit and small yellow flowers followed by upright seed capsules. Blooming continuously from mid spring to late summer, the handsome foliage is topped by delicate, bright yellow flowers. Because Oxalis is so difficult to kill, the weed may require several treatments, expect and plan for this in advance. Oxalis … Oxalis is an easy-to-grow plant that might even develop tiny white flowers that hide beneath the foliage. The genus occurs throughout most of the world, except for the polar areas; species diversity is particularly rich in tropical Brazil, Mexico and South Africa.. vulcanicola (Volcanic Sorrel) - A tender sprawling evergreen perennial to 8 inches tall by 2 feet or more wide with semi-succulent stems that spread to create a low, mounding mat of red foliage growing from small swollen tubers - will trail down over and drape a couple feet over an edge. Oxalis spiralis ssp. All oxalis have three-part, clover-like leaves. Full sun to dappled shade in hot areas. Pink oxalis (Oxalis corymbosa) has large dark green heart shaped leaves and grows in clumps out of a small brown bulb. Purple Shamrock Care Guide Light. Fast growing, Oxalis vulcanicola 'Molten Lava' is a tender perennial, usually grown as an annual, forming a lush mound of yellow, orange, and burgundy, clover-like leaves. Oxalis – often called shamrock – has beautiful foliage and plenty of dainty blossoms. Way not invasive. Drapes over walls or containers.