Traditionally, roses are one of the first flowers you can plant. The first roses available in spring come in dormant in March and can be planted as soon as the ground thaws. If you plant early, and the low temperatures are consistently below freezing mulch your rose over its crown to protect it. Even though the rose is not growing above the ground, its roots will start growing, giving the plant an early start in your yard. In late April and May Mahoney’s receives ‘finished’ roses with leaves and usually buds that will soon flower. These plants are the definition of instant gratification.