Leaves on roses with brown edges

[Kazplus2]

Just bought a rose bush/ plant last week and it's been growing great but noticed this morning that some leaves have got brown edges. Some of these are newish leaves too. Any idea what is causing this and what I should do. Very novice gardener here.

Looks like it could be leaf burn.

Is it planted in a windy spot? Or are you coastal at all?

Or is it possible that you have over-fed it / planted it in a place where there could be a build up of salts / fertilisers etc?

I'd keep it well watered, and keep an eye on it.