My DIL wanted some vines to plant on the wire of her rather large chicken pen to provide more shade for her "girls". She bought 2 rather lovely Carolina jasmines yesterday and then read last night that this plant is toxic for chickens. There is so much misinformation on the web that I decided to ask here so the true experts can advise us. Some sites said No, No. Others said the chickens will not bother the plants. Opinions?