Laggy Knockout Roses

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I prune these roses by half every fall and by this time of the year thay look like this.
What am I doing wrong ?
 

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I prune these roses by half every fall and by this time of the year thay look like this.
What am I doing wrong ?
Probably because you are pruning at the wrong time of year. Prune roses in the south on valentines day or thereabouts.
 
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You need to remove at least two thirds to three quarters, remove the thinnest of stems completely so you build up a framework of thicker branches but be sure you cut old flower stems back to a leaf joint during the flowering season so as to encourage perpetual flowering. Roses are hungry plants so much feeding is needed before during and after flowering.
 

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