Pansy Flower Weather. Pansies are surprisingly hearty in cold weather though. How do you keep pansies.
02032020 Set pansy plants in the ground when it becomes workable in the spring. By the time you purchase them blooming they are in their second year. Pansies can tolerate a light frost just after planting but try to hold off on putting them in the ground if temperatures are still regularly reaching well below freezing.
Pansies thrive in cool weather and will tolerate light frost or cold night temperatures.
Says Roethling adding that they will need full winter sun and sharp drainage to thrive. They grow best when soil temperatures are between 45F and 65F 7C and 18C. Says Roethling adding that they will need full winter sun and sharp drainage to thrive. Traditional pansies will bloom from spring through early summer with some repeat bloom in the fall.