Limelight Hydrangea Tree Flowers

Limelight Hydrangea Tree

Pink Double Knock Out Rose Tree blooms and foliage up close

Pink Double Knock Out Rose Tree

Sunny Knock Out® Rose Tree

Availability: Out of stock
Only %1 left

Cheery Sunshine Sunny Knock Out® Rose Tree

  • Tree Form of Gardener Favorite
  • Bright Yellow Flowers Age to Mellow Cream Color
  • Blooms From Late Spring through Fall
  • Rose Bushes Make Outstanding Flowering Trees
  • Fragrant Knock Out® Variety Smells Like Citrus
  • Great in Containers
  • Dark Green Foliage
  • Carefree Style
  • Wonderful Gift
  • Attracts Butterflies and Hummingbirds
  • Healthy, Robust Root System
  • Drought Tolerant
  • Excels in Humid Climates
  • Pest and Disease Resistant
  • Versatile

Show off your happy personality with a wonderful tree-form Rose carefully crafted by the expert growers at Nature Hills Nursery. You'll adore the unique flair of a Sunny Knock Out® Rose Tree (Rosa Radsunny' PP18,562).

The deciduous Sunny Knockout shrub produces an abundance of fragrant, single, vivid yellow blossoms that age into a lush, warm vanilla cream. The sunny blooms stand out against the dark, semi-glossy foliage.

Sunny Knock Out Rose Tree blooms prolifically from spring until the first frost. How nice to see those happy little flowers performing for you all through the entire growing season!

Love the smell of citrus? Sunny is one of the most fragrant of the Knock Out® family of Roses. The blooms are infused with a wonderful, fresh scent of lemons and limes.

This bushy Shrub Rose sits atop a sturdy standard trunk. You'll truly enjoy the fragrance and sight of the blooms, as they are raised up for easy inspection.

These plants are butterfly and hummingbird magnets. You'll love watching these flying flowers flutter and flit in your garden!

Faded blooms will self-clean, so there is no dead-heading required. Lush, shiny green foliage makes a wonderful foil for the brilliant flowers.

Developed to be carefree and extremely hardy, Sunny Knock Out Rose Tree is both disease and pest-resistant. It would love a sunny location in your yard, but would be equally at home in a container on your patio.

We honestly can't think of a better gift to give someone you love than this cheery little tree. What a fun housewarming present, or a nice way to celebrate a friendship. It's perfect for one of those Big Birthdays, and a wonderful plant for celebrating a healing or sharing sympathy after a loss. It's easy enough for anyone to care for.

You'll love this petite accent tree and can tuck one or two in sunny spots all around the yard. They'll make a great focal point wherever you choose to use them. Order yours today!

How to Use Sunny Knock Out® Rose Tree in the Landscape

The sweet little tree has such pretty yellow blooms and keeps roses growing all through the season. People notice it right away, so use it where you want to draw attention.

If you have the room on your porch or portico, place one on either side of your front door in large, exterior pots for a sophisticated, yet cheery greeting. They'll appreciate the yummy citrus scent as they approach your home.

Use a single tree in your foundation planting as a small accent near the front walk as a welcoming beacon for your front entrance. Plant in the ground, or use a fun container to coordinate with the exterior finishes of your home.

Underplant the tree with spring bulbs, perennials and groundcover for a textured look that works beautifully throughout the season. Add short, dwarf evergreens to extend the interest over winter.

They'll make the perfect plant to decorate your patio outdoor entertainment areas. They look fetching in pairs flanking an entrance, or try an odd number placed in a curve behind seating areas.

March a series of them down the length of a garden path to add structure and charm. Or, try this same look as a lovely backdrop for perennial gardens.

For a marvelous look, try using 3, 5 or 7 of these trees as regular punctuation through a long hedge of Sunny Knock Out Rose bushes. Adding the trees brings vertical height to your hedge to easily increase the dramatic impact.

Increase the formality with a disciplined planting plan. For instance, you can plant 3 bushes, then add a tree, then 3 bushes, then a tree and so on. Start and end with bushes for a nice finishing touch on either end. It will look like a million bucks, but the low maintenance level of care stays the same.

#ProPlantTips for Care

Choose a well-drained site for planting in your garden. Rose root systems won't tolerate wet soil. If you see puddles that last a long time where you hope to plant, you can mound up. Add additional soil to a height of 18 and plant directly in the mound.

Elevate containers up off the ground. Use 3 or more bricks in a wide triangle to give a steady base. You want to position the drain hole over the opening in that triangle. Rose trees grown in an outdoor container should not have a saucer underneath, please. Keep the soil drained.

Sun loving Roses perform at their best in full sunlight. Knockout roses in particular are able to handle long, hot days spent baking in the full blaze of the sun. 6 - 8 hours of direct sun are recommended.

New plants will require a moderate amount of regular water to get their roots established in your native soil.. Test before you water by using the Finger Test by poking your finger into the soil up to the second knuckle. If it's getting dry, time to apply water. If it's still moist, you can skip watering that day. (Pro Tip: use the Finger Test on houseplants, too!)

Knock Out Roses will display drought tolerance once their roots are well established. However, we recommend you baby your Tree Form plant a bit, especially if you are growing it in a container. Set up a drip irrigation system on a schedule to keep things really easy for yourself.

While not required, you can give a balanced Rose bloom fertilizer twice a year, following the directions on the label. Usually, it's recommended to wait for the first application until after the first flush of blooms are passed. Give the second application no later than mid-summer. Each formula will have different application rates, so be sure to check the instructions.

Knock Out roses are well known for their rugged nature, and disease resistance to black spot, rust and powdery mildew. Give your tree plenty of sunlight for the best results. Diluted organic Neem Oil can be sprayed on the foliage in the evening, if you ever feel like it's needed. Chances are great you'll never, ever need to worry about it.

You'll want to study your tree in early spring once the new growth is leafing out. Remove any crossing, damaged, or wild canes that have a mind of their own all the way back just above a new bud.

Make selective pruning cuts to open up the interior of the canopy for more sunlight and air circulation. You can also hard prune the entire canopy back with tip pruning to control size, if desired.

If you're looking for a happy-go-lucky, easy care Rose with a fresh, modern twist, the Sunny Knock Out Rose Tree is for you. You'll feel like you captured the sunshine with this pretty selection. Don't miss out on your chance to own one of your own, order today!

Buying Options for Plants

Nature Hills sells a large variety of plants with several options available. Plants are offered in both potted containers and as dormant bare root without soil. Here is a helpful resource to understand your options as you create a beautiful landscape with help from Nature Hills.

Ever wonder what a larger plant will mean for your landscape? Container Sizes are really all about the age of the plant!

Seasonally, Nature Hills offers hand selected, high quality bare root trees, shrubs and perennials. Bare root plants are sold by height from the top of the root system to the top of the plant. Plants may be taller than the height minimums.

  • Popular sizes of select trees are 1 foot, 2 feet, 3 feet, etc.
  • Popular sizes of select bare root plants is 1 foot, 18 inches, etc.

Nature Hills Container Size by Volume

Young Plants to 18 Months
Size Volume
2"x2"x3" Ranges from .18 to .21 dry quarts / .198 to .23 dry liters in volume
4.5" Container Equal to .65 dry quart / .72 dry liter in volume
Sprinter Pot Equal to .63 dry quart / .69 dry liter in volume
4" Container Ranges from .31 to .87 / .35 to .96 dry liter in volume
6" Container Equal to 1.4 dry quarts / 1.59 dry liters in volume
1 Quart Equal to 1 dry quart / 1.1 dry liter in volume
5.5" Container Equal to 1.89 of a dry quart / 2.08 dry liters in volume
4"x4"x5" Ranges from .8 to 1.1 dry quarts / .88 to 1.2 dry liters in volume
4"x4"x6" Ranges from 1.0 to 1.3 dry quarts / 1.1 to 1.41 dry liters in volume
4"x4"x9" Ranges from 1.1 to 2.1 dry quarts / 1.2 to 2.3 dry liters in volume
4"x4"x10" Ranges from 1.7 to 2.3 dry quart / 1.87 to 2.53 dry liters in volume
Plants 18 Months - 2.5 Years Old
Size Volume
2 Quart Equal to 2 dry quarts / 2.2 dry liters in volume
#1 Container Ranges from 2.26 to 3.73 dry quarts / 2.49 to 4.11 dry liters in volume
5"x5"x12" Equal to 3.5 to 4.3 dry quarts / 3.85 to 4.74 dry liters in volume
Plants 2 - 4 Years Old
Size Volume
#2 Container Ranges from 1.19 to 1.76 dry gallons / 5.24 to 7.75 dry liters in volume
#3 Container Ranges from 2.32 to 2.76 dry gallons / 10.22 to 12.16 dry liters in volume
Plants 3 - 5 Years Old
Size Volume
#5 Container Ranges from 2.92 to 4.62 dry gallons / 12.86 to 20.35 dry liters in volume
#7 Container Ranges from 5.98 to 6.08 dry gallons / 26.34 to 26.78 dry liters in volume

About Plant Sentry™

Plant Sentry is designed to protect both consumers and the nursery trade from invasive plant pests and diseases. Sites that display the Plant Sentry protection badge are protected from consumers buying and nurseries shipping material carrying invasive pests and diseases.

This proprietary eCommerce software prevents the shipment of a restricted plant to each state. The Plant Sentry system includes a shipment certification program. The Plant Sentry Compliance Officer works closely with and each nursery or fulfillment center to ensure only compliant plants are sold to customers.

Click Here to learn more

Plant Sentry


To obtain a more accurate shipment time-frame, simply enter your zip code in the “Find Your Growing Zone” box to the right. Our plants are grown all over the country and lead time on items may be different because of this. Once your order is placed, you will also receive the specific shipment time-frame information as part of your order confirmation. Once an item ships, you will receive shipment notification and tracking numbers, so you can follow along while your plant travels to your doorstep.

Shipping Rates

At Nature Hills we handle, package and ship the products you order with the utmost care to ensure healthy delivery. Shipping and handling charges are calculated based on the tables below. Please note that some items include an additional handling surcharge, these will be noted on the item's product page.

From To S&H
0 - 19.99 14.95
20 - 49.99 17.95
50 - 69.99 19.95
70 - 99.99 24.95
100 - 129.99 29.95
130 - 130+ Approx 25%

Click here to see our full rates


Sunny Knock Out® Rose Tree Is Suited to Grow in Zones 5-10
Growing Zones 5-10
More Information
Brand Knock Out
Botanical Name Rosa 'Radsunny'
Type Deciduous
Mature Height 4 - 5 feet
Mature Spread 3 - 4 feet
Sun Exposure Full Sun
Soil Type Well Drained
Moisture Moderate
Growth Rate Medium
Flower Color Yellow
Foliage Color Green
Pollinator Friendly Yes
When To Prune Early Spring