It's not often that landscaping and politics overlap. But the controversy over invasive plants affords an exception to the rule. Legislation already exists in some locales banning the sale of invasive plants; expect much more to come in the near future -- and expect it to be more virulent. Should these species be blacklisted? Compelling arguments can be made against the growing of invasive plants. But as in any rational debate, we need to stick to the facts to be most productive. That is the point made by this participant in the Landscaping Discussion Forum on invasive plants. Agree or disagree? Ah, I love a good debate!