I put time on x24 AND slept on a bed and still nothing.The Daybloom tends to fully grow only during the day so look at it during the day and not at night.
So pay close attention and also it takes a tons of time to grow herbs.
Edit: They can grow anywhere.
Maybe I'm just being impatient then...They grew for me with no real issue. Not able to reproduce a bug here.
Could we have some screenshots? Maybe they're actually bugged.Maybe I'm just being impatient then...