If you're not having luck with your leaves don't give up- but definitely try something new
And remember- Tiffany's windowsill in an 8b zone greenhouse at whatever time of year has its very own unique climate- temp, humidity, light. I'm more than a little envious, but I just remind myself not all windowsills are equal
I've had some success and lots of fails, and I have no idea why sometimes it worked and sometimes it didn't, but it does make it really special when I do get it to work!
