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Mizuna Seeds, 605 Summer
Description
(Brassica rapa subsp. nipposinica). A taste of Kyoto’s culinary heritage, this heat-tolerant Mizuna variety was originally bred to withstand the heat and intense humidity of Japan’s interior. Mizuna is suitable for several harvests and can be eaten at all stages. This variety is traditionally sown for high summer harvest when the juicy, watery stems make the most refreshing mid-day snack.
- 25-40 days to maturity
- 6-12 hours of sun
- Sprouts in 5-8 days
- Seed Depth: 1/4"
- Plant Spacing: 6-12"
- Ideal Temperature: 55-70 F
- Frost Hardy: Yes
Growing Tips, Tricks and FAQs
Growing Tips
605 Summer Mizuna is a hardy, heat-resistant green that thrives in various conditions, making it an ideal choice for home gardeners. This variety is known for its bolt resistance, allowing it to produce tender leaves even during warmer months. Mizuna prefers well-drained, nutrient-rich soil and full sun, though it can tolerate partial shade. Regular watering is crucial, especially in the heat, to prevent the plants from bolting.
When to Grow
Mizuna can be grown in both cool and warm seasons. It is best planted in early spring after the last frost or in late summer for a fall harvest. In areas with mild winters, Mizuna can be grown throughout the cooler months. If planting in late summer, consider starting indoors or using shade to avoid excessive heat during germination.
How to Sow and Plant
To plant Mizuna, sow seeds directly in the garden about 1/4 inch deep and 1 inch apart in rows spaced 18-24 inches apart. The seeds typically germinate within 5-8 days at temperatures between 55-70 F. Thin seedlings to about 6-12 inches apart to ensure ample space for growth​.
How to Grow
Mizuna requires consistent moisture, especially in warmer conditions. Water early in the morning and consider using mulch to retain soil moisture. Fertilize with a nitrogen-rich fertilizer like fish emulsion or compost tea every 3-4 weeks. Mizuna grows best in full sun but can tolerate partial shade, particularly in hotter climates​.
How to Save
Allow some plants to bolt and produce small yellow flowers, followed by seed pods. Once the pods dry on the plant, harvest them and store the seeds in a cool, dry place. Mizuna seeds remain viable for up to four years when stored properly​.
FAQ
How long does it take to harvest 605 Summer Mizuna?
Mizuna is fast-growing and can be harvested in as little as 3-6 weeks after germination, depending on the growing conditions​.
Can 605 Summer Mizuna be grown in containers?
Yes, Mizuna grows well in containers. Use a pot that is at least 12 inches wide and ensure it has good drainage. Keep the soil consistently moist and place the container in a sunny spot​.
What are the common pests or diseases affecting Mizuna?
Mizuna is relatively pest-resistant, but it can occasionally be affected by flea beetles and aphids. Use row covers to protect young plants and consider natural pest control methods like neem oil if infestations occur.
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