Invasive Garlic Mustard Weed Like Townwide Whack A Mole

Photo courtesy of Ally Donnelly

May 7, 2021 by Ally Donnelly

Once you know what it is. It’s hard not to see it everywhere. “It was literally waking me up at night,” says Ann Marie Schembri. “I’d see it in my dreams like whack a mole, popping up from the ground. My hand kept trying to grab it.” Garlic mustard, also known as poor man’s mustard, is an aggressively invasive weed. Schembri spotted a blanket of it leading into the woods behind her house. “Once I found out how invasive it was, I panicked because we had just put sod down and I didn’t want it to spread to the lawn.” Schembri says it took 8 hours over two days to pull it up. She has 15 contractor-sized trash bags full of it, ready for the dump. “I never want to see it again.”

That’s not likely says Chris Kennedy of Kennedy’s Country Gardens in Scituate. “It’s able to spread so quickly because it flowers early in late spring, early summer. There are lots of little seeds in those flower pods. Bees, the wind, whatever, transport the seeds and they proliferate like crazy.”

Kennedy says, once you see the flowers, they’re about to set seed. “It’s so aggressive that it starts to choke out native habitat,” he says. “Plants need sunlight and water, but if a garlic mustard plant grows taller than say a native Jack in the Pulpit that you see in New England woods, it will die off. Anything that doesn’t grow as tall as it gets pushed out.”

Kennedy calls it community service to pull the weed wherever you see it. “You want to grab the plant as low as possible and try to grab multiple stems,” he says. “Sometimes one stem will break off before you get the root, so pulling more at a time makes the pull stronger. And you really want the root or it will just come back.”

Photo courtesy of Ally Donnelly

So what should you do with the armfulls you yank from the ground? “We recommend you don’t throw it back into the woods or your compost pile where it can reseed. And you definitely don’t want to take it to the transfer station for compost. You want to put it into trash bags and throw it away.”

But there’s another option. You could cook it. Chef Courtney Basel on the Clandestine Kitchen Culinary Team whipped up some Garlic Mustard Pesto Pasta for us. “Garlic mustard greens are very simple to use in recipes at home,” she says. “It has a little bitterness and a little spice so the key is to incorporate other fresh ingredients that pair will like basil, parsley, arugula and citrus” Basel says embrace a farm-to-table mentality. “We waste so much food in the U.S., it’s a shame not to use something that is growing right in your backyard.”

The Anchor team got to try Clandestine Kitchen's Garlic Mustard pesto and it was delicious!  Who knew invasive weeds could taste so good?!

Garlic Mustard Pesto Pasta Recipe by Chef Courtney Basel, Clandestine Kitchen Culinary Team:


  • 1 cup garlic mustard greens (leaves only). Rinse and gently pat dry.
    • plus 1/2 cup mustard greens set aside
  • 1 cup Basil leaves
  • 1/2 cup Arugula
  • 1/4 cup grated Parmesan cheese
  • 2 Tbs pine nuts (optional)
  • 1 clove garlic, minced
  • 1 Tbs whole grain mustard
  • 2 Tbs white balsamic vinegar
  • 1/4 cup extra virgin olive oil
  • 1/2 teaspoon local Duxbury Saltworks sea salt
  • Black pepper and red pepper flakes to taste
  • 1 box pasta, cooked to al dente
  • 1 cup mixed organic vegetables, small dice
  • 2 Tbs fresh parsley, minced


  1. In a food processor fitted with a metal blade, combine minced garlic, pine nuts (if using) mustard, cheese, basil, mustard greens and arugula with balsamic vinegar. Season with salt, pepper and red pepper flakes, and, with the motor running, slowly emulsify by drizzling in the olive oil.
  2. Add prepared pasta to a large serving bowl. Pour sauce over pasta and add remaining mustard greens, vegetables and parsley. Toss until pasta is coated and sauce is evenly distributed.
  3. Add any vegetables and herbs you have on hand. Here, we used red pepper and zucchini.

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