The guard cells, around the stomates, close the stomates when they wilt. When the guard cells are plump and full, they hold the stomates open. Now, lets look at how the blueberry grows over the course of the year. Right now our blueberry bushes are dormant and ready for winter. We have had an unusually warm fall with few days below freezing.
Many growers are concerned about next year's crop.
The bushes are still waiting for winter. As long as cold weather does not arrive abruptly we have little to worry about. Our Blueberries require about a thousand hours of chilling. We probably begin to accumulate chilling hours sometime in November. The plant will not grow until this chilling requirement is completed.