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Creator of this idea.

Photo of Tammi Chen
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Idea Summary

Japanese knotweed is an invasive plant species that has a hollow stalk, once the stalk is dried it can be used as a straw.

Please include a visual (can be either 2D or 3D) representation/prototype of your concept. (required)

The Japanese Knotweed is an invasive plant species that has a hollow stem. The knotweed will be harvested and dried so it will maintain its shape for a longer period of time. The straw will be heat treated to eradicate any bacteria. This a win-win solution for restaurants trying to go green and it will help the environment by getting rid of the weeds. 

This solution addresses which of the following:

  • Straws

How is your concept recoverable?

The straw is decomposable and still maintains it's structural integrity.

What regions do you plan to address with your solution (and how will you accomplish this)?

Cities where people are willing to go green.

Describe your target market. Who will benefit from your product?

Cafes with that want to go green.

What is the current stage of development of your idea?

  • Research & Early Testing

What are the biggest challenges you are facing today? What are existing gaps in your solution?

Getting my hands on knotweeds. I have only read/research them.

Mentorship Needs (please select up to 3)

  • Materials and Technical Development
  • Engineering and Manufacturing
  • Sustainability and Recoverability
  • Waste and Infrastructure

In what city are you located?


In what country are you located?


How did you hear about the Challenge?

  • Someone in my network (word of mouth)


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