Am I part of the problem? I was looking at one of my garden books from a while ago, â€œAttracting Backyard Wildlifeâ€ 1989, written under the auspices of the Federation of British Columbia Naturalists with a grant from the BC Ministry of the Environment, Public Conservation Assistance Fund. This recommends the following for planting in gardens or leaving in a â€œweed patchâ€ in the wildlife garden. Yellow Iris Iris pseudocorus Crabgrass Digitaria spp. Knotweeds Polygonum Spp. Milkweed Asclepias spp. Thistles Various All of these are now noted as nuisance to noxious in parts of BC, by various authorities. I am not criticizing the authors by giving this list. We all work with the information available at the time. I am suggesting that we have either learned a lot over the last 18 years, or the field officers in the Ministry at the time didnâ€™t get to edit the contents. From information such as this, we urban & suburban gardeners can become part of the problem. For example, it might go like this - â€Letâ€™s give a piece of that nice plant to your sister in Kamloops, sheâ€™s just starting a gardenâ€ â€¦Hmm? New invasions can be started this way, or re-infection can occur by a well intentioned people as ME! A more cautious approach all-round seems to be in order. Perhaps a gentle word or two to those around me might help to spread the idea that not all plants are a good idea in all areas. If our avid gardener neighbour comes back from parts unknown with plants & no phytosanitary certificate, it might be an idea if I were a bit disapproving in the future, not envious. Just clarifying my ideas in a public forum & hoping for feedback. gb.