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This (Wild) Onion Makes Me Cry!

When it recently rained for days in a row, I stood at the window and watched my weeds grow.  I have quite the variety of weeds, as I suspect we all do, but some I don’t really mind.  For example, Oxalis is extremely invasive, but it is somewhat pretty and is almost enjoyably easy to pull up from the soil.  Even if I don’t always get all of the bulbs like I should, at least I can hold some hope that I’m weakening the bulbs by pulling up the rest of the plant.  Plus, Oxalis goes dormant with the summer heat.  Out of sight, out of mind, right?

But my least favorite?  The wild onion, Allium triquetrum, which is also known as the three-cornered leek.  It’s not an ugly weed—in fact, it is sometimes cultivated as an ornamental.  It has flower stems of about 1 foot tall, with nodding clusters of small, bell-shaped, white flowers.  Not surprisingly, it has a strong onion smell.

The wild onion multiplies quickly, spreading by bulbs and seeds, and it is very hard to remove once established.  Like Oxalis, it can be controlled by digging up the entire plant, including the bulbs.  But unlike Oxalis, which pulls up easily (thus giving me a false, yet satisfying, sense of accomplishment), wild onion snaps at the soil level every time I try to pull it up.  So the entire plant must be dug up, which is difficult to do given the extent of its spread throughout the yard, its proximity to other more desirable plants, and the depth to which I must to dig.  And I think that’s what I find so aggravating about the wild onion.  I could quit work and dig wild onions for the rest of my days, but I’m still fairly sure that I will not prevail.  It spreads so quickly and so thoroughly!  So at best, I try to content myself with digging a few plants and snapping off the flower stalks so that the plants don’t spread even more via seed.  I know there are worse weeds, but this wild onion is the one onion that makes me want to cry.

 

Close up of wild onion flowers. (photos by Erin Mahaney)
Close up of wild onion flowers. (photos by Erin Mahaney)

Note the cluster of white onion plants.
Note the cluster of white onion plants.

Posted on Tuesday, April 3, 2012 at 9:00 AM
Tags: Allium triquetrum (1), bulbs (6), invasive (9), oxalis (3), seeds (10), spreading (1), wild onion (1)

Comments:

1.
I've got wild onions all over my yard, and I actually think they're pretty, so I don't worry about them spreading. What I can't find out though, is whether or not they're edible. Do you know?  
thank you!

Posted by Kate Douglas on April 6, 2014 at 7:09 PM

2.
No, I don't know if they are edible. One thing I've learned, however, is that "wild onion" can mean different things to different people (different species, etc.) so it is always best to check with an expert before trying it.

Posted by Erin Mahaney on April 6, 2014 at 7:51 PM

3.
Wild onion to all of you who love nature.  
 
Snip the flowers and buds once they appear,  
that at least limits proliferation.  
Then you can take 1 square metre at a time and systematically dig up bulbs.  
Repeat as they appear up.  
I would not worry about stalks unless they contain buds.  
Parts can be isolated in a container and let deteriorate into compost or use as a fertilizer tea.  
Gradually claim back space, but keep vigilant.  
If they grow on the edge of paths, be careful you do not walk on buds or flowers. You just get the process off again.  
Cheers. Little by little, but be vigilant as per vacated space.  
They can be used for soup, salad, or juicing. Not too much.  
 
Wild Onion.

Posted by mary bentine on April 28, 2014 at 2:30 PM

4.
yes, they are edible. put some oil in the pan and bring to heat.chop them into small 1-2cm and stir fry until soft, then add some salt .done.

Posted by Joseph on September 28, 2014 at 5:07 PM

5.
There are edible Japanese restaurants will pay five dollars a bucket for the flowers.

Posted by ted weber on April 7, 2016 at 8:05 PM

6.
I feel your pain. I've been fighting them for 30 years in Western Sonoma county. They are pretty but my goodness they're prolific. Every season I win the battle but alas, I'm afraid, I will lose the war.

Posted by MICHAEL C HOPKIN on February 20, 2017 at 2:17 PM

7.
I live in Walnut, but I was drawn to your photo of my sworn enemy. I suspect that these little devils spread both by corming from the bulb [because they do clump] and by seed. I've reached the same conclusion - the only answer is to dig them up. This year, because I'd heard they are not fond of acid, I'm adding some white vinegar after I get most of the clump up - we'll see if that helps. While eating your enemies was long thought to add vigor, I'm not sure I'm ready to allow them even that much credit.  
 
Jack

Posted by Jack Fallin on January 24, 2023 at 5:02 PM

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