To offer up what Xcom talked about toward the end of his Haven universe thread.
There are invisible "sever grids" that are roughly 9 tiles by 9 tiles on the ground.
a Bee hive only effects the grid it is in and the 8 grids around it. for a 3x3 server grid square.
So regardless of whether or not the beehive appears to cover the area it's influence will not cross to sever grid lines.
View attachment. beehive is placed right next to a sever grid line the 9 tiles to the west and south of beehive are cover the the rest in the blue area are outside the 3x3 sever grid area and the sever does not recognize that it is inside the hive radius.
BeeHive2.jpg
you can move your farm about 4 tiles north or build a second hive to the south to cover those crops.
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