What month is the best to plant blueberries?
Harford County Maryland
Spring or fall are good times. See 'Timing' on our blueberry webpage: https://extension.umd.edu/hgic/blueberries-selection-and-planting
It refers to, not a specific month, but "when soil can be worked in the spring" because you don't want to plant in wet/soggy soil. "Workable" soil has some moisture, but when you make a ball of soil in your hand and bounce it, it should be dry enough that it breaks apart.