One rose flower is blooming

My sister gave me this mini rose a few years ago.  I kept it on the porch during the summer and inside the house during the winter.  It was healthy most of the time and had some flowers every year.

 

This summer, it lost most of the leaves and I had to cut some branches.

 

I put it on the floor inside while we were on holiday for 2 weeks.  We kept the floor heater on low while we were away.

When we came back, I found the rose had many more leaves and it was ready to bloom.

 

It may have more flowers so I keep it on the floor.

 

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