PlantFiles: Hybrid Rose
Rosa 'Double Knockout'

Absolutely wonderful plant. After trying about 50 other different types of roses, and growing discouraged because of the diseases associated with Southern grown roses, I finally found this one. I planted 21 around a palm tree and found out quickly that I should have spaced them at least 4 ft apart. I also planted 2 together in another bed, about 1 foot apart. Never do this, because they each like their own space. I personally like to keep them pruned to about 2 1/2 ft all around. They seem to be fuller for me that way. They bloom constantly from spring to fall. I was even able to have a vase of roses on my table in November. They actually look like a Hybrid Tea, which I love. I am adding the Pink Double Knockout and the Sunny Knockout to my collection. What a joy to know I will have blooms all the time while experimenting with other plants.

I started with the original Knockouts (one of which is 5 feet wide and 5.5 feet tall, progresses to Double Knockouts, and this year added two Double Pink Knockouts. The don't get blackspot, they don't need constant watering, and they grow thick and well. Three years ago I also bought one of Wm. Radler's other roses, Ramblin' Red, a hearty climber and constant flowerer that's disease resistant. The only drawback is that none of the above are fragrant, but they look great in a landscape and are nearly care-free.

We have 3 of the double red Knockouts planted in afternoon sun that are flourishing in our new Davidson County, NC landscape, They are irrigated but are given no other attention except for occasional deadheading. We also have 6 of the dark red singles w/ yellow centers that are not doing well. They get morning sun and are also irrigated, but they have black spot , aphids and are being eaten by either deer or rabbits. This is our first full summer here so I will give the singles a chance through this summer w/ extra care and if they don't look better, they will be moved or replaced.

I have 8 of these throughout my very large flower bed. Everyone is flourishing whether in deep or light shade or full sun!! The bloom color is an electric reddish fuschia and really stands out in the shadier sections of the bed.

Bred in United States (2004) by William J. Radler.
Introduced in United States (2004) by Conard-Pyle (Star Roses).
Parentage: Seedling of Carefree Beauty × Seedling of Razzle Dazzle (Floribunda, Fryer, 1997)

A workhorse in the garden with very little care. Best description of color would be magenta.

I adore this rose. Has all the wonderful attributes of the single knockouts, but with double flowers! Non-stop bloomer, disease resistant, vigorous grower. Not fragrant.