Brassica juncea
Grows well from spring until fall. An early maturing, flavorful, nutritious, mild mustard. Leaves are mild flavored, smooth and dark green. Cook for its tender greens or use raw in salads like spinach. As easy to grow as it is rich in vitamins and minerals. 40 days. Frost hardy. 0.65g/approximately 200 seeds.
Tendergreen Mustard
Brassica perviridis 'Tendergreen'
Duration: Annual
When to Sow: Spring/Late Summer/Early Fall Ease of Germination: Easy
Broad spinach-like leaves can be eaten as cooked greens or in salads and sandwiches. Remains crisp and mild even during hot weather. For continuous supply sow every month or so. Will regrow some after cutting. 20-30 days.
https://www.richters.com/Web_store/web_store.cgi?product=X8516&show=&prodclass=Vegetable_Seeds&cart_id=2577263.6554