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If it is located on the inside of the stem, new growth will grow toward the inside of the bush.

Feb 11, Learn how to properly prune roses during the summer bushleaning.bar the Southwest Yard & Garden series. Jul 26, Any heavy or moderate pruning of rose bushes is not advisable during the hot summer months.

This is because once a plant has left its dormant stage and is already in the growth stage, the plant’s cane is full of sap.

When one of the rose bush’s canes are cut, the sap leaks out.

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Losing too much sap will weaken the entire rose bush. In this weakened state, the plant has a decreased chance of successfully fighting off a disease. In addition, the number of flowers will decrease as the plant Estimated Reading Time: 3 mins.