Variety field guide
What to expect from Mizuna Red Streaks
Mizuna Red Streaks is an annual mizuna selection grown for baby leaf, full-size greens, succession planting, cool-season gardens, and seed saving.
Open the complete descriptionHide the complete descriptionVariety traits, flavor, garden use, and the complete description
Mizuna Red Streaks Mustard Seeds produce a fast-growing Asian mustard known for its deeply serrated green leaves highlighted with vivid red veins. Mizuna Red Streaks Mustard Seeds are well suited for gardeners seeking rapid harvests and reliable performance. The tender leaves offer a mild mustard flavor with a subtle peppery bite, making Mizuna Red Streaks Mustard Seeds ideal for fresh salads, stir-fries, soups, and pickling.
Minimum seeds per packet: 250 seeds.
About Mizuna Red Streaks
Mizuna Red Streaks is an annual selection of mizuna, with an upright/erect habit and an expected height or spread of 13–18 in. It is best suited to baby leaf, full-size greens, succession planting, cool-season gardens, and seed saving. Notable traits include red coloring; cut baby leaves young or harvest full-size plants before quality declines; peppery to mustard-like flavor that strengthens with age and heat.
Mizuna Red Streaks deserves a separate record because cultivar names can carry differences in harvest stage, plant form, flavor, or regional performance.
History and provenance
Red Streaks is a finely divided, red-veined mustard green classified as Brassica juncea. Although sold with the common name mizuna, this named selection should not be assigned to the Brassica rapa Nipposinica Group simply from that name. Its tender leaves are used for baby-leaf salad mixes and larger-leaf harvests. A verified breeder or release history has not been established here.
Growing facts
| Scientific name | Brassica juncea |
|---|---|
| Life cycle | Annual |
| Maturity | 40-49 Days |
| Germination | 3-7 Days at 45–60 °F |
| Seed depth | 1/4 in |
| Plant height / spread | 13–18 in |
| Growth habit | Upright/Erect |
| Spacing | 6 in between plants; 12 in between rows |
| Sunlight | Full - Partial Sun |
| Soil | Loamy; pH 6.0–6.5 |
| Water | Moderate |
| Support | No-Support |
Starting Mizuna Red Streaks from seed
Sow 1/4 in deep and keep the seed zone evenly moist. Expect emergence in 3-7 Days when the seed-zone temperature is near 45–60 °F. Germination preparation: Direct sow into a prepared, weed-free seedbed; avoid disturbing developing roots or dense stands. Light requirement: Cover evenly to 1/4 in. Soaking: None required. Stratification: None required. Scarification: None required.
Planting and care
Plant during spring and provide full - partial sun. Space plants 6 in apart with 12 in between rows. Use loamy with a pH near 6.0–6.5, and follow a moderate watering plan. Support requirement: No-Support. Frost response: Hardy. Good container fit with drainage, even moisture, and the listed spacing
Harvest and use
Approximately 40-49 Days, from direct sowing to the listed baby-leaf or full-size harvest stage. Weather, soil temperature, and planting method can shift the actual harvest date. Harvest: Cut baby leaves young or harvest full-size plants before quality declines. Uses: Baby leaf, full-size greens, succession planting, cool-season gardens, and seed saving. Flavor: peppery to mustard-like flavor that strengthens with age and heat. Seed saving: Insect-pollinated Brassica rapa. Best uses include baby leaf, full-size greens, succession planting, cool-season gardens, and seed saving. Flavor and eating quality: peppery to mustard-like flavor that strengthens with age and heat.
Saving seed
Select several healthy, true-to-type Mizuna Red Streaks plants that match the expected upright/erect habit and overall plant form. Avoid saving seed only from the earliest or largest individual unless that is your deliberate selection goal. Pollination system: Insect-pollinated Brassica rapa. Crop groups within Brassica rapa can cross with one another. Separate compatible varieties that may flower together, or use cages, barriers, hand pollination, or another documented control appropriate to the crop. Allow selected plants to pass the eating stage and reach full botanical seed maturity. Harvest only when seed heads, pods, or fruits have matured enough for sound seed development. Clean the seed carefully, dry it thoroughly away from direct heat, label the lot with variety and year, and store it cool, dark, and dry. Test germination before an important planting or distribution season.
Common problems
Common concerns: Flea beetles, imported cabbageworm, cabbage loopers, aphids, slugs, root maggots, and clubroot risk where the pathogen is present. Management: Use rotation, insect netting before pests arrive, regular leaf inspection, sanitation, and well-drained soil. Do not plant the same brassica family repeatedly in one bed. Diagnosis note: Similar symptoms can have different causes. Compare plants of the same age, record weather and irrigation, and use local Extension or diagnostic support before applying a control.
Frequently asked questions
Frequently Asked Questions - Mizuna Red Streaks
When is Mizuna Red Streaks ready? Use 40-49 Days. Approximately 40-49 Days, from direct sowing to the listed baby-leaf or full-size harvest stage. Weather, soil temperature, and planting method can shift the actual harvest date.
How long does germination take? Expect 3-7 Days at about 45–60 °F. Cooler, hotter, crusted, saturated, or dry seedbeds can slow emergence.
How large does it grow? Expect about 13–18 in with an upright/erect habit. Space plants 6 in apart and rows 12 in apart. Support: No-Support.
Can it grow in a container? Good container fit with drainage, even moisture, and the listed spacing Use a container with drainage and enough volume to maintain the listed spacing and steady moisture.
Can I save seed? Insect-pollinated Brassica rapa. Keep compatible varieties isolated and allow selected plants to reach full seed maturity.





