Rose leaves falling off

Rose leaves falling off

If you remember back a couple weeks ago I had my first experience with aphids on my indoor miniature rose plant. They're still around, but under control. I even gave them rose food. I just have to spray them every now and then with water and mild soap. However, most of the leaves fell off. My mother said it looks like it went into winter hibernation. I wish I could take a pic but my camera is dead. I was wondering if it's quite possible with the roses being in Zone 5 now (I'm assuming even though they were grown in Canada that they were kept in a controlled environment) that they would go into hibernation mode. I know other plants do, but I thought that since we're so near Spring that it wouldn't. Any thoughts?
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hi there!

hi there!

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rooOom

rooOom

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