How to Grow Osaka Purple Mustard
Brassica juncea 'Osaka Purple'
Your complete guide to growing Osaka Purple Mustard.
📷 Wikimedia CommonsWhen to Plant Osaka Purple Mustard
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | April – May | June – July | July – September |
| Zone 2 | April – May | May – July | June – September |
| Zone 3 | March – April | May – June | June – October |
| Zone 4 | March – April | April – June | May – October |
| Zone 5 | February – March | April – May | May – November |
| Zone 6 | February – March | April – May | May – November |
| Zone 7 | February – March | March – May | April – November |
| Zone 8 | January – February | March – April | April – December |
| Zone 9 | January | February – March | March – December |
| Zone 10 | January | January – March | February – December |
| Zone 11 | January | January – February | January – December |
| Zone 12 | January | January – February | January – December |
| Zone 13 | January | January – February | January – December |
Companion Plants for Osaka Purple Mustard
✓ Good companions
Help break up soil for shallow brassica roots and don't compete for nutrients
Repel aphids and improve growth of neighboring brassicas through root secretions
Attracts beneficial insects like parasitic wasps that control cabbage worms and aphids
Deters flea beetles and cabbage worms while improving soil health
Makes efficient use of space as a low-growing companion and has similar water needs
Repel nematodes and various pests while attracting beneficial predatory insects
Act as trap crops for flea beetles and aphids that commonly attack brassicas
Repel cabbage maggots and other root pests with their strong sulfur compounds
✗ Keep away from
Can shade the mustard greens excessively and compete for root space
Compete for similar nutrients and can harbor pests that also attack brassicas
Both are heavy feeders that compete for nutrients, and tomatoes can stunt brassica growth
Nutrition Facts
Per 100g serving (USDA FoodData Central)
