Bright yellow, daisy-like blooms will catch your eye, and the exceptionally resin-rich petals of 'Resina' will delight herbalists. Calendula is very frost tolerant and may even be seen blooming in snow! Calendula petals have been used for medicinal purposes for hundreds of years and are also edible. Mix into egg dishes, casseroles, baked goods, salads, or sandwiches.