Knock Out® Red Rose
This 2000 AARS Winner has become one of the most popular and best-selling Roses of all time . . . and for very good reason!
Perhaps the best ever landscape Rose for four-season interest, this stunning hybrid is the culmination of breeder William Radler's lifework. Not only is it the most blackspot-resistant Rose we've ever grown, but it also stands up to Japanese beetles and other pests, blooms over an exceptionally long period, and offers foliage and fruit interest as well as lovely blossoms.
Exceptionally hardy and disease-resistant, Knock Out? is also breathtakingly beautiful, with great clusters of 3- to 3½-inch blooms of fire-engine red (or lighter cherry-scarlet in hot climes). These flowers begin early in Rose season and continue for many weeks. The shrub then rests for a bit, and repeats for the remainder of summer and well into fall! It's one of the longest bloom cycles in the Rose family, and will fill your garden with bright color and subtle tea scent. And when the blooms finally end, the color continues with burgundy-violet fall foliage and orange-red hips.
Crown-hardy to -20?F, this 3- to 4-foot-tall and wide shrub sneers at drought, humidity, and pests such as blackspot, Japanese beetles, leafhoppers, and rose midge. It is essentially maintenance-free, although like any new addition to your garden, it appreciates pampering the first season or two.
Knock Out® was bred from a seedling of R. 'Carefree Beauty' x a seedling of R. 'Razzle Dazzle.' It has become so immensely popular since its introduction that new Knock Outs are arising each season. We recommend Pink Knock Out and Double Knock Out.
Knock Out® never needs deadheading, and is one of the very few Roses that earns the title "maintenance-free." Zones 4-9.
| Genus | Rosa |
| Variety | Knock Out® |
| PPAF | PP#11,836 |
| Item Form | Trade Gallon (3qt) |
| Zone | 4 - 9 |
| Bloom Season | Early Summer - Mid Fall |
| Habit | Compact |
| Plant Height | 3 ft - 4 ft |
| Plant Width | 3 ft - 4 ft |
| Additional Characteristics | Bloom First Year, Butterfly Lovers, Easy Care Plants, Flower, Grafted, Long Bloomers, Repeat Bloomer, Rose Hips, Fragrance, Free Bloomer |
| Bloom Color | Red |
| Bud Shape | Ovoid, Pointed |
| Foliage Color | Dark Green |
| Fragrance | Light, Tea Rose |
| Light Requirements | Sun/ Part Shade |
| Resistance | Black Spot, Disease Resistant, Drought Tolerant |
| Soil Tolerance | Normal, loamy |
| Uses | Border, Cut Flowers, Hedge, Outdoor, Landscapes |
| Restrictions | Canada, Guam, Hawaii, Puerto Rico, Virgin Islands |
Easy as 1-2-3
Anyone can grow roses - all that's needed is a spot with 6 hours of sun a day. Roses are even well suited to container growing, so you don't have the excuse of no garden space!
Here's all there is to it!
 STEP 1 - When your roses arrive, open the box immediately and soak roots in lukewarm water for 12 to 24 hours. If you can't plant them right away, you may leave them in their boxes for up to a week in a cool, dark place. Sprinkle roots with water every few days. (Please note: You can also grow roses in containers that are at least as big as a bucket.) |
STEP 2 - Dig a hole about 18" deep and 24" wide. Make sure it's large enough to give the roots plenty of room to develop after planting. Loosen the soil at the bottom and sides. Build a mound in the center of the hole and set rose on top. For vigorous growth, abundant blooms and lush foliage, try adding J&P's Root Boost |
STEP 3 - Fill the hole with two thirds of the remaining soil. Add water, let it soak in, then finish filling the hole. Tamp down lightly to remove air pockets and water well. Spread mulch around the plant to suppress weeds and retain moisture. Water 3-4 times a week until leaves begin to grow, weekly thereafter. |
Find Your Climate/Planting Zone
Simply enter your zip code to find your area's climate zone, and then review our Summer or Winter Care of Roses for detailed information for growing roses in your region. Click here for the zone map.
Seasonal advice and suggestions for maintaining your roses.