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Mustard Seed

Use our zone-based planting guide to know when to plant mustard seed.

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Mustard seed 3a Not recommended April 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 3b Not recommended April 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 4a Not recommended April 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 4b Not recommended April 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 5a Not recommended March 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 5b Not recommended March 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 6a Not recommended March 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 6b Not recommended March 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 7a Not recommended March 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 7b Not recommended March 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 8a Not recommended Feb. 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 8b Not recommended Feb. 1-15 Not recommended 12-18 inches 1-2 for the household
Mustard seed 9a Not recommended Fall and winter Not recommended 12-18 inches 1-2 for the household
Mustard seed 9b Not recommended Fall and winter Not recommended 12-18 inches 1-2 for the household
Mustard seed 10a Not recommended Fall and winter Not recommended 12-18 inches 1-2 for the household
Mustard seed 10b Not recommended Fall and winter Not recommended 12-18 inches 1-2 for the household
Mustard seed 11a Not recommended Not recommended Not recommended Not recommended Not recommended
Mustard seed 11b Not recommended Not recommended Not recommended Not recommended Not recommended

* Mustard seeds come from the same plant as mustard greens. Instead of harvesting the leaves, simply let them go to seed then harvest.