We’ve grown onions and always in flat, level ground. Spacing has a lot to do with the type of onion you’re growing; in general, a few inches between each and several inches between rows. You can find lots more specific information here: http://cru.cahe.wsu.edu/CEPublications/FS097E/FS097E.pdf
We’ve grown onions and always in flat, level ground. Spacing has a lot to do with the type of onion you’re growing; in general, a few inches between each and several inches between rows. You can find lots more specific information here: http://cru.cahe.wsu.edu/CEPublications/FS097E/FS097E.pdf