Rainbow Knock Out Rose
Rosa 'Rainbow Knock Out'
Essentials
At a Glance
Plant Type
Shrub
Height
48 inches
Width
48 inches
Light
Full Sun, Partial Sun
Zones
4, 5, 6, 7, 8, 9
Water
Low to moderate
Humidity
Adaptable
Lifespan
10+ years
Native To
Cultivated hybrid
Toxicity
Mildly toxic to pets if ingested; thorns are a hazard.
The Story
Plant Bio
Roses are woody perennial flowering plants of the genus Rosa, prized for their often fragrant flowers which come in a vast range of colors, forms, and sizes. Rainbow Knock Out is distinguished by its single, coral-pink petals with a bright yellow center, creating a dynamic, multicolored effect. Like all Knock Outs, it boasts exceptional disease resistance and continuous blooming.
Bloom Period:
Uses & Benefits:
Marketplace
Where to Buy
Shipping costs Year-round shipping Free shipping
Planting
How to Grow
- Choose a location with at least 6 hours of direct sunlight.
- Dig a hole twice as wide as the plant's container.
- Amend the soil with compost if it is heavy clay or poor sand.
- Gently remove the plant from the pot and place it in the hole.
- Ensure the top of the root ball is level with the soil surface.
- Backfill, water thoroughly, and add a layer of mulch.
Pro Tip
Don't deadhead this rose. It's self-cleaning and will bloom continuously without any fuss, saving you time and effort.
Keep It Thriving
Care Guide
Do
- Provide full sun for the best bloom production.
- Water deeply during establishment and extended dry periods.
- Give it one hard prune in late winter or early spring.
- Plant in well-drained soil.
Don't
- Don't plant in deep shade.
- Avoid frequent, shallow watering.
- Don't worry about deadheading or spraying for disease.
- Don't fertilize heavily; a single spring application is often sufficient.
Seasonal Care Calendar
| Task | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fertilize | ||||||||||||
| Mulch | ||||||||||||
| Pest Check | ||||||||||||
| Prune |
Watch Out For
Pests & Diseases
Common Pests
Common Diseases
In the Garden
Landscape Uses & Companions
Landscape Uses
Companion Plants
Multiply
Propagation Methods
Good to Know
Common Questions
Rainbow Knock Out Rose questions
What zones can Rainbow Knock Out Rose grow in?
Rainbow Knock Out Rose is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.
Is Rainbow Knock Out Rose deer resistant?
Not reliably. Deer may browse Rainbow Knock Out Rose, especially tender spring growth — plan on repellents or fencing where pressure is high.
When does Rainbow Knock Out Rose bloom?
Rainbow Knock Out Rose typically blooms in late spring through mid-fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.
Does Rainbow Knock Out Rose need full sun?
Rainbow Knock Out Rose does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.
Is Rainbow Knock Out Rose drought tolerant?
Yes — once established (usually after the first full season), Rainbow Knock Out Rose handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.
More Rosa to compare
Flutterbye Rose
Rosa x hybrida 'Flutterbye'
Joseph's Coat Rose
Rosa x floribunda 'Joseph's Coat'
In Your Eyes Rose
Rosa x hybrida 'In Your Eyes'
Rainbow Rose
Rosa x hybrida 'Rainbow'
Twilight Zone Rose
Rosa x grandiflora 'Twilight Zone'
Fun in the Sun Rose
Rosa x hybrida 'Fun in the Sun'
Keep exploring
Explore the genus
Collections featuring this plant
Grow Rainbow Knock Out Rose with confidence
See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.
