How it Works

Plant and Annual Calculators

Our calculations are correct because we take into account the proper way to space plants PLUS we consider the appropriate distance from the edge of a bed to install plants. Please refer to the “correct” and “incorrect” diagrams below.

Area: 100 sq. ft.
Spacing: 12 inches
Number of Trees: 1

Correct

68
Triangular spacing AND distance from edge is equal to spacing.

Incorrect

100
plants
Square spacing BUT plants are planted only 1/2 spacing
distance off edge.

Incorrect

121
plants
Square spacing AND planted to the edge of the bed.

Incorrect

99
plants
Triangular spacing BUT plants are planted only 1/2 spacing
distance off edge.

Incorrect

115
plants
Triangular spacing BUT planted to edge of bed.

Why You Shouldn’t Combine Individual Beds and Enter into Calculator as One

plant

At 12” spacing, each 100 square foot square has 36 square feet of “edge”, or unplantable space. Four individual beds with 36 square feet unplantable space each, equals a total of 144 square feet that is unplantable.

plant

At 12” spacing, a 400 square foot square has 76 square feet of “edge”, or unplantable space.

If beds are not entered individually, the proper area of unplantable space is underestimated, therefore; the plant quantity is overestimated. In the above example, combining beds results in only 76 square feet of unplantable space, instead of the actual unplantable space of 144 square feet.