My Rose bush?

I planted this rose bush a while ago. Maybe a month but no more than 2. It had roses at first but they died. I chopped it up to shock. Then it started doing great. Growing new leaves and s couple of roses but now in the last week my leaves are turning brown? Not sure what to do, it’s on an early drip system every other day. Any ideas? I’m not good at gardening. 2 lemon trees died here!!!!!😞