Mustard Greens
Brassica juncea
Sow outdoors 4 weeks before your last spring frost. Space plants 6 in (15 cm) apart.
Photo: Forest and Kim Starr, CC BY 3.0 us · source
When to plant
Timed from your frost dates, so it holds wherever you garden. Give yours and every step below becomes a date.
Optimal Indoor Start
From seed- Start indoors9 weeks before your last spring frost
- Begin hardening off5 weeks before your last spring frost
- Plant out4 weeks before your last spring frost
- First harvestabout 45 days after planting out
Optimal Transplant
From seed- Plant out4 weeks before your last spring frost
- First harvestabout 45 days after planting out
Optimal Direct Sow
From seedRecommended- Sow outdoors4 weeks before your last spring frost
- First harvestabout 45 days after sowing
Optimal Fall Direct Sow
From seed- Sow outdoorsabout 9 weeks before your first fall frost
- First harvestabout 45 days after sowing
Growing mustard greens
- Spacing in the row
- 6 in (15 cm)
- Between rows
- 12 in (30 cm)
- Planting depth
- 1/4-1/2 inch
- Sun
- Full Sun
- Life cycle
- Annual
Feeding
- How often
- At planting, then once at midseason. A nitrogen side-dress about 3-6 weeks after planting keeps leaves coming; for repeated cut-and-come-again harvests a second light feed helps.
Your mustard greens, planned to the day.
Canopy turns these timings into dates from your own frost data, places every plant at its spacing on your garden map, and tracks it all the way to harvest.