Volume is in cubic inches, cubic feet and cubic yards. Use our handy calculator to determine the appropriate number of plants needed for an area. Use our easy plant calculator! Plant Calculator Hard Goods Calculator. Area = 25 x 3.14 = 78.5 sq. Below are some formulas for calculating the area of a planting bed. ... Use edging to form the border of a patio or walkway, or to retain soil for a flower bed. Squares and Rectangles: Area = length x width Circles: Area = 3.14 x radius squared Example: A 10-foot circle has a radius of 5 feet (5 feet squared is 25). Fortunately, it's usually a simple calculation. ft. Use this table to calculate an accurate total needed for planting beds. (There must be at least 3 sides for volume but the number for any reasonable number of sides is acceptable.) Right Plant, Right Place ATTRACTS BUTTERFLIES DEER RESISTANT DROUGHT TOLERANT FRAGRANT FLOWERS RAIN GARDEN SALT TOLERANT GREEN ROOF. "Finally, a landscape calculator that correctly lets me know the real number of plants we need for plant installation jobs. This is especially helpful when determining the amount of annuals needed for our beds by correctly taking into consideration spacing from the edge of the bed, between each plant and planting technique of alternating each row. Once you have the square footage of the bed, you can multiply that number by the recommended number of bulbs per square foot in the chart below. If a patio abuts the house, you may or may not want to put edging there. First, you will need to go outside and measure your garden bed. Garden Area Calculator 1 Determine How Many Square Feet You Have: To determine how many square feet you have, you will use the formulas listed below to find area (A) - this mathematical formula will be different based on the shape of your garden. Planting flowers in a cluster is a common mistake many planters make. The applications really are endless. Bed Area Calculator. It can be used to calculate the amount of yards needed for pretty much anything you buy in yards. Landscape supply mixes are often high in salts and high in pH and completely unbalanced in nutrients. Enter the length of a board; 48 is the default. For a circular planting bed, you can calculate how many plants per square foot is ideal by multiplying 3.14 by the distance from the center to the edge of the bed. Common Flower Spacing. Calculate Square Feet of Planting Bed. Who knew? Our volume calculator can be used to calculate the amount of gravel needed for a driveway, the amount of mulch needed for your flower beds, or the amount of compost needed for your farm or garden. How many bulbs and plants do you need to fill your garden or landscape? Availability ... » Plant Calculator; Plant Calculator. So, if you're also trying to figure this out, you're not alone! Use this calculator to estimate the numbers of edgers to use for your yard. Is one of the most frequent questions that we hear from our customers. Well, it turns out gardening is also math! Press the Calculate button. For example: if you are planting tulips and you have 7 square feet of planting space, multiply that by 5 (# of tulip bulbs per square foo Just enter your square footage and plant spacing needs. Planting densities are also provided for each item on this website. Also enter the height each side is, 8 is the default. Measure the perimeter, rounding up to the nearest foot. For a triangular bed, multiply the height of the triangle by .5 times the base measurement. Length in Feet. Raised Bed Soil Calculator We’ve seen far too many raised beds filled with “potting mix” from the landscape supply company with unhappy plants and unhappy gardeners. Supply mixes are often high in salts and high in pH and completely unbalanced in nutrients plants need. Sides is acceptable. do you need to go outside and measure garden... 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