Things You'll Need:
- Pruning shears
- Heavy duty gloves
- Mulch
- Fertilizer
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Step 1
Prune your Knockout roses in late winter down to about 12-inches. Roses will bloom on the new growth.
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Step 2
Trim back all the branches that are growing faster than others. This keeps your Knockout rose tree symmetrically even. Shape it just prior to new growth.
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Step 3
Remove old blooms to encourage new growth. The Knockout roses do not need deadheading but can use a little help if blooms are desired through the fall.
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Step 4
Water the Knockout roses from the base of the tree and not over-head. Water that remains on the roses and leaves cause leaf spot and disease.
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Step 5
Apply a 3-inch layer of mulch around the base of the Knockout rose tree. Purchase a bag of mulch from any home and garden store. Keep the mulch away from the stems.
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Step 6
Follow the manufacturer's recommended instructions for applying a rose tree specified fertilizer. You can purchase a fertilizer made especially for rose trees at any home and garden store.









