Question
With temperature at 84-85F, how long will the buds take to open? I put one tray of water besides it to increase humidity.

Answer
Humidity should help buds to open, but they will still open naturally when the plant has gained the strength to force them to open.  

Also it could be that some colors open more slowly, grow more slowly as well.  White seems to take longer to grow and to come into bud.

Nancy