- Unless you live in the rain forest or have pandas that you need to feed, stay away from planting bamboo. This plant is so aggressive that its roots seek out new soil to grow in. Once it takes root it is very hard to kill.
- An import from Europe called English Ivy. This is a very aggressive ground cover which will grow on just about anything and choke out your trees. It is way passed its time. This plant has been banned in the Pacific Northwest and is considered an invasive species along the Eastern U.S. Best to pull it up in the spring time before it starts its new shoots.
- Aggressive and non-forgiving is Kudzu. It will grow a foot a day and cover everything. Spreads using runners like ivy and will swarm buildings, trees, anything in its way. Goats are a great way to destroy it but if you don't have goats then resort to herbicides. Keep spraying it until it finally dies back.
- Another imported weed from east Asia is Japanese Stiltgrass. Loves to grow in loose, disturbed soil as a thick mat that chokes out all your native plants. Loves forests and wetlands. Good thing is it spreads above ground so catch it with a pre-emergent herbicide late spring to summer time frame.
- Known as Beautiful Killer or Marsh Monster, Purple Loosestrife is a predator. Past uses included a treatment for dysentery but now it's just choking out the native fauna. You can use specific leaf beetles or weevils to stop it but if that's not accessible, dig it up and seal it in a bag so it will die and not spread.
- Alright, who doesn't like a mint julep? A favorite plant in the southeast. But if your growing mint in your yard beware. It loves to spread quickly. Best to grow mint in pots inside or on your patios and decks.
- Considered invasive in 19 states, Wisteria and the Chinese and Japanese versions are killers. This vinous plant will wind its way around any study support. In Sierra Madre CA is the world's largest Chinese Wisteria vine which is larger than one acre and weighs around 250 tons. Pull it down and spray with a herbicide.
- Producing large trumpet shaped flowers that butterflies love is the Trumpet Vine. It spreads by using clingy aerial roots. The more you dig it up the more it spreads. Be persistent and keep digging. Eventually you will get it all.
- Classified as a serious weed by our National Parks, Leafy Spurge or Green Spurge is Leafy Spurge courtesy of pawpaw67