Plant and Flower Calculator
Calculate how many plants or flowers you need for a garden bed. Enter bed dimensions and plant spacing for total count and flats.
๐ธ Plant and Flower Calculator
Results
Bed Area80.00 sq ft
Plants Needed99 plants
Flats (18-count)6 flats
๐ก How Many Plants for a Garden Bed?
Plant count depends on bed area and desired spacing. For a grid layout: plants per row = (bed length รท spacing) + 1. Rows = (bed width รท spacing) + 1. Total plants = rows ร plants per row. For a triangular (staggered) layout, add 15% more plants.
Common spacing: annuals (6โ12 inches apart), perennials (12โ24 inches), shrubs (24โ48 inches), ground cover (6โ12 inches). Closer spacing gives faster fill-in but is more expensive. Wider spacing takes 1โ2 seasons to fill in but costs less upfront.
A 10 ร 8 ft bed with 12-inch spacing: 11 plants per row ร 9 rows = 99 plants. That's 6 flats of 18-count annuals. At 6-inch spacing: 21 ร 17 = 357 plants.