Cup Plant

I have identified a plant called Cup Plant in my garden.  I read conflicting views from 'It's rare in this country' to 'Dig it up now it's very invasive'.  I'd be grateful for some advice.

Posts

  • fidgetbonesfidgetbones Posts: 13,551

    Have you got a photo?

    You don't stop doing new things because you get old, you get old because you stop doing new things. <3
  • fidgetbonesfidgetbones Posts: 13,551

    Silphium perfoliatum is native to Connecticut and is a weed in some  AmericanStates  . In UK it is a large sunflower type plant for the back of a border.

    You don't stop doing new things because you get old, you get old because you stop doing new things. <3
  • nutcutletnutcutlet PeterboroughPosts: 26,020

    How did you identify it and how sure are you?

  • Very sure as I compared it to photos on the internet. I know what it is, I need advice on whether to keep it or not, ie is it invasive weed?  Grateful for any help...

    Sarah

  • fidgetbonesfidgetbones Posts: 13,551

    Whether something is an invasive weed or not,depends on the conditions in grows in. For instance, Zantedeschia dies if left outside  in my garden. In Cornwall, it thrives. In the upper reaches of the Swan River in Western Australia, it is a weed and spreads everywhere. How big is the patch now, and how long have you had it?

    You don't stop doing new things because you get old, you get old because you stop doing new things. <3
  • Only one plant so far but has grown from nothing to 4 ft high in less than 3 months.

  • PalustrisPalustris Posts: 3,133

    Not a weed in my garden. One clump and it has stayed as one clump for the last 10 years. Dead head if it seeds around.

  • Thanks everyone

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