Taking Care of Your Knock Out Roses

By Diane Coleman, NRS Consulting Rosarian

What are Knock Out© Roses?

Arrangement of Knock Out Roses
Knock Out© Rose is a shrub rose bred by American rose grower, William Radler in 1989, and introduced into the United States by Star Roses and Plants in 2000. It was named an All-America Rose Selections winner in 2000 and was one of the bestselling roses of the year. The rose was found to be extremely disease-resistant, drought-tolerant and ever-blooming. The ideal rose for both new and seasoned gardeners.

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Planting and Repotting Roses in Containers

by Jack Wedekind, Master Rosarian

Tip #1

After growing most of my roses in containers for about 10 years, I have finally figured something out. The bare root roses I have planted in containers have become much better bushes than the roses I purchased already in pots and transplanted. I think I know why. When roses are commercially potted for sale, the roots of bare root roses are trimmed so they will fit in the pot. So the rose may not have all the roots it needs to reach its intended potential.

Tip #2

When a rose bush has been grown in a container for as long as 7 to 10 years and it is worth keeping, it’s time to carefully repot it. Keep the root system as intact as possible. You can reuse the container but plant the bush with all new soil mix. This process will reboot the life of the bush.