The Q&A Archives: Calculating Flats on 6 and 12 inch centers

Question: How do I calculate flats on a 6

Answer: A full flat will yield about 36 small plants. To determine the number of plants to buy, measure the area of your garden and calculate its square footage (width x length = square feet). Then determine the spacing requirements of each variety. If the recommended spacing is six inches, use four plants per square foot; for eight-inch spacing, two plants; 12-inch spacing, one plant. Buy a few more plants than you need in case of damage by animals, pests, or the weather. It's also a good idea to plant a few in four- or six-inch pots to hold for later in the summer, in case you need replacement plants.

If you're having trouble figuring it out, check with the nursery staff and they'll figure it out for you. Best wishes with your project!

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