Botanical Interests
Members save $0.26
Not a member? Join today. Sale Sold out131 seeds
Free shipping on orders over $79
Product Details
Product Details
A graceful plant in flower beds and containers, and also a tender, mildly spicy, Japanese mustard green that is milder than other mustards, and ready to harvest in as little as 3 weeks as tender baby greens. Beautiful and prolific, and withstands heat longer than lettuce without bolting. Use fresh in salads, steam, or stir-fry. Seeds will germinate under cold and wet spring conditions.
Your hardiness zone is
- Variety Info
- Sowing Info
- Growing Info
Variety Info
Days to Maturity: 30–50 days
Family: Brassicaceae
Native: Probably Eurasia
Hardiness: Frost-tolerant annual
Exposure: Full sun to part shade
Plant Dimensions: Will grow 12" tall and wide, though typically harvested when smaller
Variety Info: Mustard leaves are mildly spicy and slightly peppery. Mizuna is a type of Japanese mustard. One plant can produce as many as 200 stems with thin, serrated leaves. It is prized as much for its ornamental value as its culinary value.
Attributes: Good for Containers, Frost Tolerant, Heat Tolerant
Sowing Info
When to Sow Outside: RECOMMENDED. 4 to 6 weeks before your average last frost date, when soil temperature is at least 40°F, ideally 60°–75°F. Successive Sowings: Every 3 weeks until 10 to 12 weeks before your average first fall frost date for continuous harvest. Mild Climates: Sow in late fall through winter for cool–season harvest.
When to Start Inside: Not recommended; transplant stress can cause plants to bolt (prematurely flower).
Days to Emerge: 5–10 days
Seed Depth: ¼"
Seed Spacing: A group of 3 seeds every 4" – 6"
Row Spacing: 12"–18"
Thinning: When 3" tall, thin to 1 every 4" – 6"
Growing Info
Harvesting: Harvest in the morning if possible. You may start harvesting leaves when they are 2" tall, as needed; remove no more than 1/3 of the plant if regrowth is desired, or let plant grow to maturity and harvest entire plant. Late summer crops will last until the first hard freeze.
- HannahRated 5 out of 5 starsJul 21, 2025My mustard plants have done great
I planted the whole packet, and let me say it has all came up from what I can tell. I planted it around my Swiss chard. Wow! I have so many leafy greens now.
Which best describes you as a gardener? IntermediateEGEpic GardeningJul 23, 2025Hey Hannah,
We appreciate the feedback and we're so glad go hear you have plenty of leafy greens to harvest! We'd love to see a photo sometime! Keep on growing 🌻️
- Celia S.Verified BuyerRated 5 out of 5 starsFeb 16, 20255 Stars
My experience has been great!
- Laura S.Verified BuyerRated 4 out of 5 starsFeb 22, 2026Didn't grow as much as I would have liked, but still great!
This was possibly partially due to competition from a monster kale plant, but these seeds didn't pop up as much as the brassicas I bought from here did. Still, they make an excellent trap crop for those pesky aphids!
Which best describes you as a gardener? ProfessionalEGEpic GardeningFeb 25, 2026Hey Laura,
Thank you so much for this helpful 4-star review and for sharing your honest experience with the Mizuna Mustard Seeds! Your feedback about growing conditions and plant competition is really valuable for other gardeners who might be planning their garden layouts.
It sounds like you've got quite the impressive kale situation going on there! Those monster kale plants can definitely be competitive neighbors, so it makes perfect sense that your mizuna might have had to work a bit harder to establish itself in that environment.
We love that you discovered mizuna's fantastic potential as a trap crop for aphids - that's such a smart integrated pest management strategy! Many gardeners don't realize how effective mizuna can be for drawing those pesky aphids away from other crops. Your experience is going to be incredibly helpful for other gardeners looking for natural ways to manage aphid pressure in their gardens.
It sounds like even with the competition challenges, you're getting some great benefits from these seeds!
Keep on growing 🌻️
- Cedar S.Verified BuyerRated 5 out of 5 starsMar 3, 20255 Stars
The mizuna popped right up, great germination.
- Mary S.Verified BuyerRated 5 out of 5 starsDec 14, 20245 Stars
Products always arrive as described. Quality is excellent.
