The last thing we want to do is to delay your enjoyment on the golf course but sometimes mother nature requires us to be patient and wait a few minutes because of frost. We have faced a few days of frost over the last several weeks but it has only been present on the rough grass and has melted away before any players were attempting to start their rounds. Frost early in the season might only require a few minutes delay but as the temperatures become increasingly colder, the restrictions could last an hour or two.
Any delay will include the practice green as well so no practice putting until the restrictions have been lifted on the putting green. There are occasions where #1 is still frost covered and the PG area has cleared off.
The USGA has a great animated explanation of frost delays in the link below.