Light Needs
Mature Height
Mature Spread
Growing Zones
Double Knock Out Red Rose - Rosa x 'Radtko' PP #16202 – is a maintenance free rose that will stun from spring until late fall. Vivid red double roses are self-cleaning, so no deadheading is required to maintain blooming. Resistant to black spot and downy mildew, this shrub rose is perfect for landscapes as a hedge or an accent.
Double Knock Out Red Rose Care
Plant this shrub rose in well-drained soil and provide fertilizer in the early spring for best results. Mulch in the fall to protect the roots during winter. Prune in the early spring to maintain shape.
Double Knock Out Red Rose Spacing
For a dense hedge, plant these shrub roses between 3 and 4 feet on-center. For a mass planting or informal hedge, space plants at least 5 feet center-to-center.
Red Double Knock Out Rose Plant Facts
| USDA Hardiness Zones: 5-11 |
| Flower Color(s): Cherry Red |
| Bloom Period: Spring to First Frost |
| Foliage Color(s): Deep Purplish Green |
| Exposure: Full Sun |
| Height: 3-4 Feet |
| Spread: 3-4 Feet |
| Spacing: 3-4 Feet Center on Center |
| Habit: Bushy |
| Blooms On: New Wood |
| Watering: Drought Tolerant |
| Shrub Type: Deciduous |
| Scientific Name: Rosa x 'Radtko' |
| Common Name: Red Double Knock Out Rose |
| Brand: Knock Out Roses |
| Root Stock: Grafted For Consistent Performance |
| Root Stock: Own Root |
- SKU:
- RDBKOTROSE
Please Note: The pictures below are to give a general representation of the different container sizes. The actual size/ages of plants are estimates and will vary based on type of plant, time of year, last pruning & many other factors.
Also Known As:
Quart
Plant Age:
~ 6 months - 1 year
Plant Size:
~ 4"-8"
Pot Size:
~ 4.75"H x 4.5"W
Volume:
1.50 quarts
Also Known As:
2.5 Quart Pot
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 8"-12"
Pot Size:
~ 6.5"H x 6.5"W
Volume:
2.20-2.30 quarts
Also Known As:
#1 Container
1 Gallon
Plant Age:
~ 1 - 2 years old
Plant Size:
~ 10"-14"
Pot Size:
~ 7"H x 7.75"W
Volume:
2.26-3.73 quarts
Also Known As:
#2 Container
2 Gallon
Plant Age:
~ 1.5 - 3 years old
Plant Size:
~ 12"-18"
Pot Size:
~ 9.5"H x 9.5"W
Volume:
1.19-1.76 gallons
Also Known As:
#3 Container
3 Gallon
Plant Age:
~ 2 - 4 years old
Plant Size:
~ 12"-30"
Pot Size:
~9.5"H x 11"W
Volume:
2.32-2.76 gallons
Also Known As:
#5 Container
5 Gallon
Plant Age:
~3-4 years old
Plant Size:
~ 20" - 60"
Pot Size:
~11" H x 10 1/2” W
Volume:
3.5 - 4 gallons
We stand behind our plants with industry-leading guarantees to give you peace of mind.
We want your plants to arrive in great condition! If you notice any issues upon delivery, contact us within 3 days.
Starting January 1, 2025 all bushes, perennials & trees purchased come with an extended 1-year warranty for added confidence. If your plant dies due to a health issue within a year, we’ll make it right.
Pre-ordered plants are scheduled to ship in Spring 2025. We carefully plan our shipping dates based on your USDA Plant Hardiness Zone to ensure optimal planting conditions upon arrival. Want it sooner/later? Reach out, and we'll try our best to accommodate.
Estimated ship week for pre-ordered plants will ship based on growing zones as shown below.
| Growing Zone | Estimated Ship Week |
|---|---|
| Zone 10 | March 31th |
| Zone 9 | March 31st |
| Zone 8 | April 7th |
| Zone 7 | April 14th |
| Zone 6b | April 21st |
| Zone 6a | April 28th |
| Zone 5b | May 5th |
| Zone 5a | May 12th |
| Zone 4 | May 19th |
| Zone 3 | May 26th |
Note: These are only estimated ship dates. Plants may ship out later depending on weather & growing conditions of the plant.
Note: Only plants indicated as pre-order will ship as shown above. All other plants and hard goods will ship as normal.
Plants that are currently in stock typically ship within 2-7 business days after your order is placed.
Plant Addicts ships to the lower 48 states within the U.S. Unfortunately, we do not currently ship to Alaska, Hawaii, or internationally.
This plant cannot be shipped to the following states: AK, HI. These restrictions apply only to this specific plant due to agricultural regulations or other limitations. Other plants may still be available for shipping to these states.
If you have any questions about shipping restrictions, feel free to reach out to our team!