Then there is your precious vacation time, invaluable for relieving stress. If you leave your landscaping unattended for a trip during the summer, you can’t always count on rainfall for irrigation. As a result, while you may come home stress-free, you may find that the plants in your yard have experienced quite a bit of stress in your absence. The exception will be with the drought-tolerant shrubs and other tough plants that you grow. Below are some examples. Please read all of the information carefully, since a bush well-suited to one person’s situation may not be ideal for another’s. Secondly, plant developers have been working hard to produce cultivars of this shrub that are non-invasive. One such cultivar is ‘Blue Chip’ butterfly bush.