knock out rose - Knowledgebase Question

Stonington, Co
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Question by tumalo
June 3, 2010
This weekend I purchased four knock out rose bushes to be used at a home on the Maine coast. The summer temperatures usually run high 60's to mid 70's. Full sun all day. I want to plant them in front of a raised porch to hide the underneath opening. When they mature they would be touching. Did I make a poor choice. Should I use fewer plants and plant something else to keep them from touchin

Answer from NGA
June 3, 2010
You didn't say how long your porch is so I don't know whether 4 shrubs will be enough or too many. It's okay if they touch one another. Knock Out roses are often used as a hedging plant. If unpruned, The Knock Out? Family of Roses can easily grow to be more than 3-4' wide x 3-4' tall. Periodic trims will keep them maintained at a smaller size. A once a year cut to about 12-18" above the ground in early spring (after the last hard frost) is also recommended for maximum performance. Hope this information is helpful.

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