HELP! I got this Cracklinâ Rosie last fall and she is still ALIVE! Small miracle as Iâve had trouble with Begoniaâs in the past. Why arenât her leaves opening all the way up? Humidity? I have a humidifier that lives in this plant corner. She was pushed to the back and now Iâve moved her forward. I let her dry out to about 1.8 on my digital reader. Then water thru. Under a soltech grow light which is on 12 hrs per day - about to kick that up as we pass spring equinox. Help begonia professionals! âșïž