The Double Knock Out Rose takes everything gardeners love about the original and adds full, double flowers that look just like a classic rose. Rich cherry-red blooms appear abundantly and continuously from spring through fall. Just as tough as its famous parent, it resists black spot and disease, needs no spraying or deadheading, and is even a touch more winter hardy. Plant it in full sun, where its bushy form reaches three to five feet. It makes a spectacular low hedge, mass planting, or foundation rose. For carefree, classic red, the Double Knock Out is hard to beat.