Lupin
In New Zealand lupins have escaped into the wild and grow in large numbers along main roads and streams in South Island. The seeds are carried by car tires and water flow, and unfortunately, some tourist shops in the major tourist areas have been reported to have sold packets of lupin seeds to tourists, with the instructions to plant, water and watch them grow into a giant beanstalk. They are principally blue, pink and violet, with some yellow, and are very attractive, providing colourful vistas with a backdrop of mountains and lakes. The New Zealand environment authorities have a campaign to reduce their numbers, although this seems a hopeless task, especially when faced with such ignorance as mentioned above. In fields they seem to be eradicated by sheep, and hence remain largely restricted to ungrazed roadside verges and stream banks.