Nasty weed, Jack-in-the-pulpit look-a-like: Pinellia ternata – Featured Video

Wish this enemy on no one because at the professional gardens they discard the contaminated weedy soil. Or they have resorted to sifting the soil to remove the corms. It is a bad weed. And solarization does not outlast the corms’ durability!

By Joyce Browning, Harford County Master Gardener. Follow on Harford County Master Gardeners on Facebook

7 thoughts on “Nasty weed, Jack-in-the-pulpit look-a-like: Pinellia ternata – Featured Video

  1. Linda Myers August 17, 2021 / 12:33 pm

    I definitely have this! I think it was a hitchhiker on a plant given by a friend. I now realize I’m leaving the corms behind when I pull them. Ugh. I’ll have to be more exacting when I weed these guys.

  2. Valerie August 17, 2021 / 12:51 pm

    I haven’t seen this in my gardens yet but, what I do have is a horrible invasive plant called Chameleon Plant or Houttuynia Cordata. The only way to kill it is by spraying with glyphosate…50% strength. Get this, I’ve seen it for sale at garden centers as a groundcover!

  3. Nancy Cusumano August 17, 2021 / 1:46 pm

    What are the growing zones for this plant? will it migrate to the colder northeast? Thank you!

  4. mbrodnicki August 17, 2021 / 4:35 pm

    My sad invader is morning glory. Who knew that anything could seed itself so copiously! BTW, these videos are outstanding! Driving over the roots? Cruel, but effective!

  5. Joyce Mulcahy August 17, 2021 / 5:23 pm

    I discovered this 5 or 6 years ago and it took awhile before it was identified. I had a large patch (36″x40″?) but but I dug the entire section out and bagged it. I’ve since been relentlessly trying to dig it out as soon I as see it…and the garlic-like corm at the end must be removed or it’ll keep multiplying. It’s also in my pachysandra which makes it even more difficult to pull…ugh! I also make sure I don’t take any plants or soil from the area so I don’t unintentionally spread it to another section of the garden.

  6. Alex April 18, 2022 / 3:10 pm

    I have this and my aunt has it. Most people are not familiar with this plant but since it has 3 ways to reproduce I think a lot more people will be aware of it soon. I’ve had it only since last summer but it came with a vengeance. Anyone know when it comes up? I had a compost nearby it last year and I’m wondering if I need to toss it. I don’t want to spread it.

    • Maryland Grows April 19, 2022 / 9:03 am

      The earliest reports of it in Maryland are in mid-April, but new shoots can emerge all through the growing season if there are corms in the ground.

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