Rose Guide
When Do Roses Bloom
Most roses begin blooming in late spring and, if they are repeat-flowering, continue in flushes until frost. Once-blooming roses give a single, spectacular display in early summer.
Bloom time depends on the type. Repeat-blooming roses — most modern hybrid teas, floribundas, shrubs, and many climbers — start in late spring and produce successive flushes through summer and into fall, especially if deadheaded and fed.
Once-blooming roses, including many old garden roses and ramblers, concentrate everything into one memorable early-summer flush. Climate shifts the calendar: warm regions see earlier, longer bloom, while cold regions start later.