The leaves and stems are just falling off. Why is this? It is in a window that has a heater under it. I give it lots of water but don't feed it. It's fine for a few weeks but then the leaves just drop off. The leaves do grow back soon after, but now they are falling off again. Is this normal?
It can be a sign of times of stress for the rose. Here is a link to an article on this subject: https://www.gardeningknowhow.com/ornamental/flowers/roses/leaves-falling-off-roses.htm