How Far Apart to Plant Onions: A Clear Guide
Last updated: November 3, 2026
Onions are a versatile vegetable that can be grown in a variety of ways. Whether you are a seasoned gardener or new to gardening, it’s important to know how far apart to plant onions to ensure a successful crop. This article will provide a guide on how to properly space your onions, whether you are planting sets or seeds.
How Far Apart to Plant Onions: A Clear Guide
My neighbor has been doing this for years and her yard looks amazing. Time for me to give it a shot.
Plantings Red & sweet onions how deep and how far apart do you plant them
Hi Bob, here’s a quick guide for both red and sweet onions. Plant sets (small bulbs) about 1 inch deep with the pointed tip just at or slightly below the surface. Plant transplants (bundled seedlings) 1 to 1½ inches deep. Space them 4 to 6 inches apart in the row, with rows 12 to 18 inches apart. Use the wider spacing if you want bigger bulbs. One tip for sweet onions: choose a variety matched to your latitude (short-day types in the South, intermediate or long-day types farther north), because day length is what triggers bulbing.