Mention Japanese Knotweed and you're likely to trigger unlucky homeowners up and down the country. First introduced in the 1800s as an ornamental plant, knotweed quickly thrived - much to the distress of anyone in ownership of a smooth piece of driveway or load bearing wall. Structured like bamboo, knotweed is expert at punching through infrastructure to an alarming degree: it'll devalue your home by thousands if it's found in the vicinity.  Also like bamboo, if handled with care it can be reimagined as a delicious and interesting ingredient - the Japanese have been onto this for centuries. If you can't beat...