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Red Knock Out Rose

Height: 3 feet
Spread: 3 feet
Sunlight: Full sun
Hardiness Zone: 4b
Group/Class: Shrub Rose
Brand: Knock Out Roses

One of the most popular and reliable roses available today, Red Knock Out Rose is loved for its long bloom season, minimal maintenance needs, and exceptional disease resistance. It produces continuous cherry-red blooms from late spring through fall and maintains attractive, glossy green foliage throughout the season.

Ornamental Features

Red Knock Out Rose produces lightly-scented, semi-double cherry-red flowers from late spring to early fall. Blooms emerge from ruby-red buds and make excellent cut flowers. The foliage is glossy and dark green, emerging with a burgundy tint in spring and transitioning to rich burgundy tones in fall, adding multi-season color to the landscape.

Landscape Attributes

This multi-stemmed deciduous shrub has a rounded, bushy habit and an average texture that blends easily with other plants. It requires occasional pruning and light maintenance to encourage blooming and maintain shape. Red Knock Out Rose is highly disease resistant and tolerant of urban conditions but should be pruned in late winter after the threat of extreme cold has passed. Gardeners should note its thorny stems when handling.

Recommended Applications

- Mass plantings
- Hedges and screening
- General garden use
- Foundation and border plantings
- Accent plantings

Planting & Growing

Red Knock Out Rose reaches about 3 feet tall and wide at maturity, filling out densely to the ground and rarely requiring facer plants. It grows quickly and can live for up to 20 years under proper care. As a deciduous shrub, it loses its leaves in winter before leafing out vigorously in spring.

This rose thrives in full sun and prefers average to evenly moist soil that drains well. It is adaptable to a variety of soil types and pH levels and tolerates moderate urban pollution. Avoid overly wet or compacted soils. For best performance, provide regular watering during extended dry periods and remove spent blooms to encourage continuous flowering.