The weekly newsletter lists random plants pulled from our large database. They are not hand selected. Those invasive plants exist, have an entry in the database therefore they are a potential plant that can end up in the newsletter. If you click on that particular plant name highlighted on blue, you would have seen the invasive disclaimer Lin posted above.
This is a member based website and it's up to individuals to do their due diligence as to what to plant or not plant. Any member can add to the comments section of any plant in the database. If they have factual helpful info, please share in the comments.