Rosa 'White Knockout'
Shrub rose
- Single, white blossoms
- Dark green foliage
- Profuse bloomer summer-late fall
- Drought tolerant
- Disease resistant
Homeowner Growing and Maintenance Tips:
Prefers rich, fertile, moist, well-drained, loamy soil with organic matter and a neutral to slightly acidic pH. Does best planted in full sun and given supplemental water during dry spells. Pruning can be done in late winter while dormant, removing weak, spindly canes and thinning older, less productive canes. Deadhead spent flowers as needed through the season. Feed in spring and after the first bloom with an organic fertilizer. Mulching is beneficial.
Additional Characteristics & Attributes:
Attributes:
- Fragrant
- Container
- Summer Bloomer
- Focal Point
- Garden
- Border or Bed
- Cut Flower/ Foliage
- Long Blooming
- Specimen
- Mass Planting
- Climbing
- Fall Color
- Low Maintenance
Exposure:
- Full Sun
- Partial Sun
Habit:
- Climbing
- Upright
- Mounding
Foliage Color:
- Dark Green
Season of Interest (Flowering):
- Fall
- Spring
- Summer
Attracts Wildlife:
- Attracts Hummingbirds
- Attracts Pollinators
- Attracts Butterflies
Soil Moisture:
- Average Water
- Moist, Well-Drained
Genus Overview: Rosa
Common Name: Shrub and Climbing Rose
Shrub or climbing habit often with compound, dark green pointed leaflets and may be thorny or thornless. Flowers come in a wide range of colors and forms from single to double and white, yellow, pink, red and bicolors, fragrant and non-fragrant. Roses bloom from late spring through fall depending on the variety. Foliage can turn bronze, red or purple in fall. Flowers may be followed by small, round or tapered, berry-like fruits that turn red, orange or purple-black. Great for gardens, borders and trellises.