Rockin'™ Red Dianthus

Rockin’™ Red is the vivid red selection in the interspecific Sweet William series, identified by breeder code PAS1141436. Its upright plants grow about 18–24 inches tall and 10–12 inches wide, carrying lacy, lightly scented flowers from early spring into fall. This first-year-flowering perennial is hardy from USDA zone 5 according to the breeder and nursery sources. ## Garden Use Use Rockin’ Red in sunny borders, mixed beds, and larger containers; leave about 12 inches between plants. The saturated red flowers add a strong mid-height accent, and the source profile notes butterfly interest. The [Greenleaf Nursery profile](https://www.greenleafnursery.com/Plant/ROCKINTM-RED-DIANTHUS) confirms the exact code, flower color, habit, size, and season; [Perennials.com](https://www.perennials.com/plants/dianthus-barbatus-interspecific-rockin-red.html) also describes its spring, summer, and fall flowering and border use. ## Growing Grow in full sun; partial sun is also listed for the Rockin series. Give the clump room to reach its mature width and use well-drained soil. It may be grown as a perennial in suitable climates or as bedding for first-year flowers. ## Maintenance Remove fading flower heads to encourage additional buds and keep the bed neat. Water while plants establish and during prolonged dry periods, then reduce attention when growth is settled. Check the clump in spring and remove damaged foliage.