To extend the beauty of your garden into autumn and put some color back into your landscape, consider planting some cold-tolerant annuals. Many of these can take temperatures to 20° F. As our seasons change, so can your garden by highlighting these beautiful tough plants in your beds, borders and containers. Ageratum Nemesia Argyranthemum Nicotiana Asters Osteospermum Bracteantha Petunia Calendula Phlox (annual) Calibrachoa Rudbeckia Cyclamen Salvia, Victoria and greggii Diascia Stock Gazania Verbena canadensis Lobelia Frost hardy annuals …