The production of Pansies and Violas in the often hot temperatures of early fall presents many serious challenges for the grower. This page is designed to present some of the current information available for the grower to produce a healthy and successful crop. Also included on this page will be what we apply to your crop that may have a bearing on your program.
The origin of modern Pansies are credited to the work of an English Lord in the early 1800’s. Crossing the Alpine European species of V. tricolor (Johnny-Jump-up) and lutea with the Russian species of altaica began the modern hybrid Pansy. Where the climate is mild enough throughout the year Pansies can be a perennial though in most parts of the US they are treated as an annual. They have grown in popularity over the past decade to become one of the best selling bedding plants in the US particularly in the fall where their near legendary cold tolerance has become appreciated.
Because the origins of the Pansy arise from plants adapted to cool conditions they grow and flower best at temperatures below 65°F. Warmer conditions than this causes stress in the plants which makes it important to minimize any other forms of stress as much as possible. Included here is a checklist we created for Pansy production for finishing from Speedling plugs: