If you are wondering about the heartiest type of rose, the hybrid perpetuals is the answer. Yes, these perpetuals are so hearty in nature that they thrive well even in areas with harsh winters. But although they thrive in such kind of condition, it is still best to protect its roots especially in winter months when the wind and rain can be so heavy. Today, the hybrid perpetuals are the most prized of all the rose’s types. Flower collectors from different areas in the world have known this variety for sure.