Coral Knock Out® Rose - Tree Form

Light Needs

Full Sun

(At Least 6 Hours Of Direct Sunlight)

Mature Height

4 - 5 Feet

Mature Spread

3 - 4 Feet

Growing Zones

4 to 10

Coral Knock Out Rose Tree (Rosa ‘Radral’) captivates with bold blooms that shift from deep orange to a softer coral as the season unfolds. These abundant double petals arrive in spring and continue into fall, brightening beds or containers for months on end. Maturing at around 4 to 5 feet tall with a similarly wide canopy, this rose tree remains easy to manage. Heat and humidity only enhance the saturation of its flower color, making it a stellar choice for a long-lasting show of striking color.

While many roses fall victim to diseases, this hardy variety stands out for its excellent resistance, even in sultry climates. It thrives in sunny spots across growing zones 5–11, making it remarkably adaptable. Birds and butterflies frequent the mildly scented blooms, which are self-cleaning. Use Coral Knock Out Rose Tree as a cheerful accent in mixed borders, or as a potted statement piece near seating areas and walkways.

Coral Knock Out Rose Tree Care

Coral Knock Out Rose Tree adapts well to most well-drained soils, though it appreciates organically rich conditions with consistent moisture. Plant it where it can receive at least six hours of sunlight daily—full sun optimizes bloom production. Spread a layer of organic mulch over its root zone to retain soil moisture and limit competition from weeds. A balanced, slow-release fertilizer at the start of each growing season supports continuous flowering, while supplemental watering in hot, dry spells supports robust growth. This rose tree benefits from good air circulation to minimize any susceptibility to minor fungal leaf issues.

Light pruning works best in late winter or early spring once the threat of hard frost passes. Clip away any damaged or dead wood, and trim back shoots that disrupt the tree’s structure or become too leggy. Occasional deadheading can boost rebloom, though Coral Knock Out’s self-cleaning nature already manages spent flowers quite effectively. Winter protection may include a layer of mulch or moving container-planted specimens into a protected, unheated garage in colder zones.

Coral Knock Out Rose Tree Spacing

When planting multiple Coral Knock Out Rose Trees in a hedge or aligned row, leave about four to five feet between trunks to maintain healthy airflow and accommodate their branching spread. A container at least 16 inches in diameter offers sufficient room for roots when growing as a potted specimen, with good drainage essential to prevent soggy soil.

SKU:

1231013159-pc