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This is a standard mainstay of fall and winter harvest daikon radishes from Japan. The enormous roots can grow to 30-38cm (12-15") long and 6-8cm (2.5-3.25") in diameter. They keep very well as the soil cools down into early winter, and then they store well after harvest. The flesh is mild and crunchy, and very nice in pickles and kimchi. There is some variability to the ends between pointy and stubbed. Miyashige White Neck daikon radish seeds are for July and August sowing. This is a great crop to follow Minowase Summer Cross, which can be planted much earlier.
Matures in 50 days. (Open-pollinated seeds)
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Latin
Latin
Raphanus sativus
Family: Brassicaceae
Difficulty
Difficulty
Easy
We Recommend
We Recommend: If you don’t already have a favourite, go for variety: The Easter Egg (RD674) can’t be surpassed for showing everything a radish can be. Not only do you get a mix of colours, but you’ll come to appreciate subtle flavour differences, and differences in piquancy, or spiciness.
Season & Zone
Season & Zone
Season: Cool season
Exposure: Full sun
Timing
Timing
Radishes can be grown all season but they’re easiest when sown just after the last frost date and again at the end of summer and into the fall. Optimal soil temperature: 18-24°C (65-75°F). Seeds should sprout in 5-7 days.
Starting
Starting
Sow seeds 5mm (¼”) deep, 25 seeds per 30cm (12″) in rows spaced 30-45cm (12-18″) apart, and thin to 6-12 plants per 30cm (12″).
Days to Maturity
Days to Maturity: From direct sowing.
Growing
Growing
Ideal pH: 6.0-6.8. Radishes are moderate to heavy feeders. Best in rich, loamy soil amended with composted manure. Add 1 cup of complete organic fertilizer for every 3m (10′) of row for background fertility. Lime beds the previous fall. The real secret to growing this little vegetable is speed. Sow a short row frequently, thin them quickly, keep them watered, eat them quickly, and sow some more.
Harvest
Harvest
Harvest promptly when radishes are the size of large marbles. The leaves and developing seedpods are also tasty.
Seed Info
Seed Info
In optimal conditions at least 80% of seeds will germinate. Usual seed life: 4 years. Per 100′ row: 1.2M seeds, per acre: 522M seeds.
Diseases & Pests
Diseases & Pests
Root maggots and flea beetles can be a problem. Expect to lose 20-30% of your crop to maggots if you don’t use a floating row cover.
Companion Planting
Companion Planting
Plant radishes near beans, beets, celeriac, chervil, cucumber, lettuce, mint, parsnip, peas, spinach, squash, and tomatoes. Avoid planting near Agastache or potatoes. It is said that planting 3 or 4 icicle radishes around the mound where you plant squash, and allowing them to grow and bloom, will prevent most pests of squash and cucumber.
More on Companion Planting.
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For over 35 years, we have upheld our strong reputation as a leading seed supplier, seeking out the highest quality untreated seeds for organic growing and putting them through rigorous independent testing. We built our company on the exchange of generational wisdom in a masterclass community of newbies and masters alike. Our world may have changed, but our commitment to our people, our customers, and our planet has not.
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Radishes can be grown all season but they’re easiest when sown just after the last frost date and again at the end of summer and into the fall. Optimal soil temperature: 18-24°C (65-75°F). Seeds should sprout in 5-7 days.
Sow seeds 5mm (¼”) deep, 25 seeds per 30cm (12″) in rows spaced 30-45cm (12-18″) apart, and thin to 6-12 plants per 30cm (12″).
Ideal pH: 6.0-6.8.
Radishes are moderate to heavy feeders. Best in rich, loamy soil amended with composted manure. Add 1 cup of complete organic fertilizer for every 3m (10′) of row for background fertility. Lime beds the previous fall. The real secret to growing this little vegetable is speed. Sow a short row frequently, thin them quickly, keep them watered, eat them quickly, and sow some more.
From direct sowing.
In optimal conditions at least 80% of seeds will germinate. Usual seed life: 4 years. Per 100′ row: 1.2M seeds, per acre: 522M seeds.
Harvest promptly when radishes are the size of large marbles. The leaves and developing seedpods are also tasty.
