<human>:  How do I prune a rose bush?
<bot>: To prune a rose bush, start by removing any dead or diseased canes (stems) from the plant. Then, identify the strongest and thickest canes and prune off any thin and weak canes. Finally, thin out individual canes if the bush is too dense, cutting back to 2 or 3 buds at 45 degree angles. Make sure to keep the overall shape of the bush in mind as you prune.