just properly prune out the dead stuff.. and forget about it ... cut back to live growth ... if it is winter damage.. with no insult to the root mass ... you might be surprised how fast it can grow back ... fert is not a response.. nor necessary... ever ... mine here in MI ... was past the gutters ... i agree it might not be for your zone.. if its growing on the ground like yours seems to be ... probably dies back to snow cover repeatedly ... see link for common form ... i cant see where you are.. so i am speculating on the last ... ken check out the search term ... lol .. https://duckduckgo.com/?q=purple+round+leafed+shrub&t=ffcm&ia=images&iax=images

Katusha, I think all of us that chimed in were correct: that's just mature wood. You would probably have needed to take it out in the next couple of years to encourage new, more productive growth. You jumped the gun a bit, but I doubt you've done permanent damage. You haven't said where you live. If you're in a cold-winter area, you may lose any new growth the rose makes this summer/Fall. Don't worry too much, just be sure sure to remove any winter kill in the Spring, as is might cause canker that can spread down to the rootstock. If you're in an area with little to no freezing winter temps, you're probably in the clear, and a year ahead with any new canes that arise. Best of luck. And by the way, if in doubt, it's best to come here for advice BEFORE picking up the pruners, lol. John

@M Riz, maybe the pool is still too new and we are only now getting rid of all the construction dust? We also hired a weekly pool guy a few weeks ago so that will help to get things cleaned up even more quickly. Our pool builder has definitely had issues with materials and employees due to covid and it has dragged out getting the pool completely finished. Still waiting for those fire/water bowl and an optional filtration module.

Yours will not look anything like that because of the wall oven. That space is not open enough! Doing a diagonal base would push you far from every reaching into the corner. You could just do corner open shelves. Here is the same corner without the moldings The picture you show is an angled wall ( so no lazy susan at all on the bottom unless it is a fake wall ) and the angled shelves are between 2 cabinets that are the same depth. Yours is not. Here is what it would look like if you built an angled wall just for the area above the countertop. first option has a small 12" cabinet tot eh right of the wall oven Here is a larger angled corner ( you would have to take about 12" of cabinets away and the small cabinet to the right of the WO You can see how it hits at an odd angle because the wo is deeper than a wall cabinet. I would not do the angled corner. Honestly - stop trying to "design" that corner. It is not a big enough area for that. Simple is the best for that space.