Oxalis eradication
Maldonmarie
18 years ago
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18 years agoAnnie_qld
18 years agoRelated Discussions
Oxalis and Ruellia under roses
Comments (33)Josh, I've been growing oxalis crassipes (pink flowers, gray-green foliage) around my roses for years. I use them to edge several beds, and I've never had them get out of control. If they start to creep too close to the roses (I have mulch directly under the roses), I just dig some for the next person who asks for a start. I also grow oxalis triangularis (lavender flowers, very dark purple/black foliage) which some people grow in pots. It does perfectly well here in the ground. I have it in only one bed where I have other bulbs planted that grow up through during the various seasons. This oxalis has never jumped the edging. It's far less vigorous than oxalis crassipes. Once upon a time I grew oxalis regnellii (white flowers, gray-green foliage). It was the least vigorous of the three. I'm not sure I even have any left. All of the ones I mentioned were about 5-7 inches tall and grew into a solid groundcover. I believe I bought my oxalis at a favorite nursery in Cedar Hill (that has since closed - they had lovely old roses), but I have also seen oxalis in many, many places in the Metroples - even the big box stores. Sometimes it is located with the shade plants so you might look there. The only drawback to oxalis crassipes is that it browns and disappears when the temps are in the 90s - if - the bed is in full sun. It stays vigorous in my partially shaded beds, and of course thrives with plenty of moisture. The oxalis triangularis is in a partially shaded bed so I don't know if it disappears in the very hot sun. This trait of disappearing doesn't bother me; usually I have enough other things growing that no one notices that the oxalis is not there. But everyone does notice when it is there. Hope this helps some. If you like the look, I recommend it for North Central Texas. Lou...See MoreOxalis Nightmare in Backyard
Comments (24)I live in Center Hill, Florida, and, Yes! Have Oxalis in the yard on the North side of the house. i thought I had it all dug up in January 2020....then, January 2021, it came back with a vengence covering a 40 ft x 12 ft area....took me awhile to dig it up...took 4 weeks, working 5 - 7 hours every other day....then, have the ones missed coming up....will not replug the area with grass until I no longer see new growth.....It is a MUST to dig deeply, so that the seed is removed with the stalk and leaves....I have seen the miniture "white carrot" root system, as well, with all the group of seeds at the top of the carrot....Weed be Gone or Round-Up won't touch it..just kills the grass.... This year I dug it up a shovel full at a time and graded every shovel full...put in 5 gallon bucket and would pour that into garbage...have new plants coming up in front flower bed and found few in the Floratam St Augistine grass....spread to neighbors yard about 12 inches and I went and dug it up...2 weeks later see new growth there...will go dig up again....BEWARE! If you don't get that seed at the bottom it comes back...that stem attached to the seed is fragile...so, fluff the soil around it after digging it up...get that seed! But, WEAR A MASK! Because I was on my hands and knees grading the clumps, the Oxalis leaves contain needle sharp crystals that can be inhaled into your throat and mouth....causing severe throat and mouth irritation...I know, because I have had it for over 3 weeks now and two trips to emergency room & doctors look at me like I'm crazy...leaves have needle sharp crystals that can be inhaled.....I checked all info I cound find on the internet for symptoms of oxalic exposure....Called Poison Control...they couldn't help ...no knowledge what-so-ever!!!! My primary care doctor told me to give it up....like I was crazy? I am older than dirt.....72 years old.....still digging in the dirt....but, I don't want ths poisonous weed in my yard.....found this site today....anrcatalog ucanr edu....poisonous plants ...ANRCATALOG.EDU Also, ...mayoclinic.org....treatment for calcium oxalate crystals...It showed Vitamin B-6 reduces oxalate in urine....have a high fluid intake to dilute it...use alkalizing agents like citrate inhibits formation of calcium oxalic crystals....plus fish oil....Mayo Clinic is in Jacksonville, Fl., and I don't have a driver to take me there...and doctors in Central Florida think I'm crazy.......So, don't take chances, this weed can effect your kidneys from what I have read.....and not one doctor did a blood test or urine test to get any results on me....and this oxalis can be deadly....so, use caution....Had a CT scan of my throat last week......waiting on the results to see if any damage has been done.....Be Safe......Your Friend Against Oalis.....Terri in Center Hill, Florida...04/24/2021 ...Good Luck!...See MoreOxalis overtaking Oakland yard
Comments (10)Too much experience with oxalis here! I have found there is the type with a tiny bulb at the end of the major root. Similar to the nut on nut grass. This type is the worst to eradicate in my experience. So far I only have it in pots. So I poke a bamboo stake down beside it to loosen its roots and try to bring up the entire thing. If I can't get it that way I repot. Sometimes that does get rid of it. Or eventually, may take 3 years, I rid the pot of it with assiduous application of the bamboo stake. The kind that has just roots, with no tiny bulb, I have in the ground. That kind responds to weed killer or hand weeding. I now look upon the oxalis battle as entertainment. 1 point for me for every nut/bulb....See MoreWhat kind of weed is this and how to eradicate?
Comments (3)Try some Weed be gone chickweed clover oxalis killer, usually sold as concentrate . Hit it 2-3 times, a week or more apart each time, 2-3 days after mowing. Add baby shampoo , maybe an ounce or two, to a one gallon sprayer with the concentrate weed killer. Label should have instructions on making a one gallon batch. the baby shampoo acts as a surfactant. Fill it half way with water then addd concentrate, mix it around a bit, then add shampoo then fill to one gallon mark slowly. dont apply if it's going to rain within a few hours. If that doesn't work come on back, there are stronger items to try afterwards....See MoreUser
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