Brassica juncea

Purple Osaka Mustard Greens

Days to Maturity: 21 days baby - 40 full size

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Spicy cupped emerald leaves tinged with purple.

Purple color becomes more intense as leaves mature. Similar to Red Giant with less colorful veins and a cupped leaf that makes washing easier and salads more lofty. Spicy mustard flavor.

  • Adds color and loft to mixes
  • Cold tolerant
  • Spicy flavor

14-15.6M (14.8 avg) seeds/oz, 225-250M (237.5M avg) seeds/lb. M=1,000. 1/32 oz approx. 450 seeds. Direct seeding rate: Baby, 60 seeds/foot in a 2” band in rows 2-6” apart. Bunching, 15 seeds/foot in a 2” band 12-18” apart. Full size, thin to 8-12”. Transplants: 8-16” apart in rows 12-18” apart.

Cultural Info

Seed depth: ¼”. For baby leaf- Seeding rate: ~60 seeds/ft in a 2-4”; Row spacing: 2/3” between bands. Harvest when leaves are ~3” tall by cutting 1” from ground or pick individual leaves for cut and come again. For full size- Seeding rate: ~12 seeds/ft; Plant spacing: thin to 6”; Row spacing: 18”.


Most Brassica greens are moderately hardy annuals that can be sown from early spring through midsummer. Commonly grown as baby leaf for salad mixes in the US, and also traditionally grown for full size leaves in ethnic cuisine or stir-fry and pickled. Light cooking dispels mustard heat to reveal a very sweet and full flavor. Direct seed as soon as soil can be worked. Sow every 3 weeks into fall for a continuous harvest. Harvest leaves as desired. Use floating row cover when planting to protect from flea beetles.

16M seeds/oz. M=1,000

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