leafy · direct sow
Mizuna: how much to plant.
A family of 4 eating mizuna a few times a week needs about 138 plants in ~92 sq ft, worth about $110 a year at the store. Here are the exact numbers for your household, and when to plant in every zone.
How much to plant
Plants, space, seeds, and value.
Counts assume about 3 servings per person per week with a germination buffer built in. Store value uses ~$4.00/lb retail, an estimate that varies by region and season.
| Household | Plants | Bed space | Seeds to buy | Store value / yr |
|---|---|---|---|---|
| 1 person | 35 | ~24 sq ft | ~61 | ~$28 |
| 2 people | 69 | ~46 sq ft | ~119 | ~$55 |
| 4 people | 138 | ~92 sq ft | ~238 | ~$110 |
| 6 people | 207 | ~138 sq ft | ~357 | ~$166 |
Spacing
8" in row · 12" between rows
Sow depth
0.25"
Days to harvest
40 from seed
When to plant
Sow windows by USDA zone, 2026.
Zone dates are typical, not exact. The free planner uses your ZIP code's frost dates, not just the zone, and shifts every window to match.
| Zone | Spring sow window | Fall sow window |
|---|---|---|
| Zone 3 | Mar 21 – May 1 | Jun 27 – Aug 11 |
| Zone 4 | Mar 16 – Apr 26 | Jul 7 – Aug 21 |
| Zone 5 | Mar 6 – Apr 16 | Jul 17 – Aug 31 |
| Zone 6 | Feb 24 – Apr 6 | Jul 27 – Sep 10 |
| Zone 7 | Feb 9 – Mar 22 | Aug 6 – Sep 20 |
| Zone 8 | Jan 29 – Mar 11 | Aug 27 – Oct 11 |
| Zone 9 | Dec 27 – Feb 6 | Sep 16 – Oct 31 |
| Zone 10 | Dec 7 – Jan 17 | Sep 26 – Nov 10 |
Know when it's time to plant
Give us your ZIP and we'll email you a planting checklist for your exact frost dates, this month's list right now, then once a month when sow windows open.
One email a month, only when there's something to plant. Unsubscribe anytime.
Know before you grow
The practical stuff.
Ready to pick when
Feathery leaves 4 to 6 inches; cut and it regrows within 2 weeks.
Yield
About 0.2 lbs per plant over ~2 productive weeks (~0.2 lb). Re-sow every ~14 days for a steady supply instead of one glut.
Watch for
Cabbage worms & loopers · Aphids · Flea beetles · Black rot · Cabbage root maggot, the pest guide covers organic fixes for each, and Pest Radar shows what gardeners near you are reporting right now.
Neighbors
Plays well with carrot, garlic, onion, radish. Keep away from tomato, tomato, tomato.
Stop guessing. Get your exact numbers.
Tell the free planner what you want to eat and who you're feeding. It returns plant counts, spacing, and frost-safe sow dates for your ZIP code, not just your zone, in about 60 seconds.
Mizuna planting questions
How many mizuna plants do I need per person?+
For steady eating (about 3 servings a week), plan on roughly 35 plants per person. A family of 4 needs about 138 plants, which takes around 92 sq ft of bed space.
How much space does mizuna need?+
Space plants 8" apart in the row with 12" between rows. Sow 0.25" deep. Direct sow in the bed.
When should I plant mizuna?+
It depends on your frost dates. Spring sowing is keyed to your last spring frost. It also has a fall window keyed to your first fall frost. The zone table on this page shows typical windows; enter your ZIP in the free planner for dates tuned to your exact location, not just your zone.
Is growing mizuna worth it?+
At about $4.00/lb retail and ~0.2 lb per plant, a family-of-4 planting is worth about $110 a year at the store. Prices vary by region and season, so treat it as an estimate.