๐ฑ Gardening
Seed Spacing Calculator
Seeds are sown more thickly than the final spacing so that losses from poor germination do not leave gaps, then thinned once the seedlings establish. Germination rates for stored seed commonly fall to 70 or 80 percent after a year.
How it works
Row length
Final plant spacing
Seed spacing when sowing
Germination rate
Number of rows
Plants required
Seeds to sow
Seedlings to remove when thinning
Seeds per foot of row
Note
Frequently asked questions
How do I use the Seed Spacing Calculator?
Fill in the fields above โ the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.