Enter your Garden Area, preferred Plant Spacing, and Spacing Pattern to find out exactly how many plants you need — or plug in your Number of Plants to see how much space they'll fill, with Plants per Square Foot and Coverage Efficiency to help you get the most out of every square inch of your garden.
Calculated Result
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Plants per Square Foot
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Coverage Efficiency
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Square spacing arranges plants in a grid pattern, while triangular (offset) spacing staggers every other row. Triangular spacing typically allows for about 15% more plants in the same area and provides better coverage.
Check the plant's mature spread and use 50-75% of that measurement for spacing. Closer spacing fills in faster but costs more, while wider spacing is more economical but takes longer to achieve full coverage.
Yes, this calculator works for any plant type including groundcovers, shrubs, perennials, and annuals. Just adjust the spacing based on the mature size of your specific plants.
For quick coverage, use spacing at the lower end of the plant's recommended range. This typically means 1.5-2 times the plant's mature spread, resulting in full coverage within 1-2 growing seasons.
For irregular shapes, break your garden into rectangular sections and calculate each separately, then add the totals together. This gives you a more accurate plant count than using the total area.
Yes, it's wise to order 5-10% extra plants to account for potential losses due to transplant shock, weather, or other factors. This ensures you have replacements available.
In rich, well-draining soil, plants may grow larger and need wider spacing. In poor soil, plants stay smaller and can be spaced closer together. Adjust spacing based on your soil conditions and expected plant performance.
Plant during the optimal season for your plant type and climate zone. Spring and fall are generally best for most plants, allowing them to establish before extreme weather and achieve the spacing calculations more predictably.