Japanese Knotweed - Knowledgebase Question

Fowlerville, MI
Question by kshroyer
July 6, 1999
I guess in a sense this plant is a pest as I cannot get rid of it. Do you have any ideas of how to rid my yard and gardens of Japanese knotweed?


Image
Answer from NGA
July 6, 1999

0

Like many exotic plants we put in our gardens, Japanese knotweed has a reputation for escaping cultivation. It's such a sturdy, vigorous plant that it can become a pest in no time at all. For absolute eradication you'll need to dig the plants, roots and all. While you're working your way through the garden, be sure to keep the tops of these plants cut down. Keeping them from flowering and going to seed is important to stop their spread. Since the roots need foliage to supply them with food, it you keep the tops cut down, the roots will eventually run out of energy. It won't be easy, but you can eliminate Japanese knotweed if you keep after it!

You must be signed in before you can post questions or answers. Click here to join!

« Return to the Garden Knowledgebase Homepage

Member Login:

Username:

Password:

[ Join now ]

Today's site banner is by sunnyvalley and is called "Hibiscus 'Purpureus Variegatus'"