In the learn section of the Food for Everyone website, they include a chart of common vegetable spacing.
https://foodforeveryone.org/garden_genius/94/
I will list that schedule here, with suggested changes. I’ll often recommend planting closer than we put in the Learn section.
Plant Type Sdlng or Sd Spcng Rws/Bed Depth of Seed/Seedling
beans, bush either 3 2 1/2″
beans, pole either 2 1/2 1 1/2
beets, red either 1-2 2 0.25
berries, blrsp. seedling14 1 6
broccoli seedling14 2 alt.* To Crown
cabbage seedling12 2 alt. ”
carrots seed 1 2 0.125
cauliflower seedling 14 2 alt. To Crown
celery seedling 12 2 alt.
chard either 12 2 alt. 0.25
corn seed 8 2 alt. 0.5
cucumbers seedling 9 1 Cover root ball
kohlrabi seed 2 2 0.25
lettuce, head either 12 2 alt. 0.125/cover root ball
lettuce, leaf either 6 2 0.125/ ” ” ”
melons, cntlp either 9 1 0.25/ ” ” ”
melons, hnydw either 9 1 0.25/ ” ” ”
melons, wtrmln either 18 1 0.25/ ” ” ”
onions, grn tp either 1 2 0.125
onions, bulb either 1/4″ 4 0.125/1.0
parsley either 6 2 0.0625
parsnips seed 3 2 0.25
peas, bush either 2 2 0.5
peppers, all seedling12 2 alt. Deep – 2-3″ of stem
potatoes seed 8 2 alt. 1.5
radishes seed 1 2 0.125
spinach either 6 2 alt. .25/Cover root ball
squash, crk-nck either 21 1 0.5/ ” ” ”
squash, yellow either 21 1 0.5/ ” ” ”
squash, zucchinieither 21 1 0.5/ ” ” ”
tomatoes seedlng 9 1 Deep – 3-4″ of stem
turnips seed 2 2 0.125
