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Radish Seeds, De 18 Jours
Description
(Raphanus sativus). This old French variety gives unbelievably rapid yields! The name translates as “of eighteen days,” and this radish will indeed yield roots in 18 days under ideal conditions! Round to cylindrical roots are red with white tips; the flesh is crisp and juicy. A French breakfast type, often grown under glass for off-season production.
- 18 days to maturity
- Full sun
- Sprouts in 3-6 days
- Ideal Temperature: 50-75 F
- Seed Depth: 1/4"
- Plant Spacing: 2"
- Frost Hardy: Yes
Growing Tips, Tricks and FAQs
Growing Tips
De 18 Jours radishes grow best in well-drained, fertile soil with a pH of 6.0-7.0. They grow well in full sun to partial shade and need even moisture to achieve a tender texture and avoid becoming overly spicy. Sow spring radishes in several small successions for a continuous harvest.
When to Grow
Start sowing seeds as soon as the soil can be worked in spring (about 4 weeks before the last frost date) and continue sowing every 2-3 weeks to maintain a continuous harvest. In mild climates, you can sow them until late fall. For exact dates, refer to your local frost date information.
How to Sow and Plant
Direct sow De 18 Jours radish seeds 1/4 inch deep and about 2 inches apart in rows spaced 12 inches apart. Be careful to give each plant enough space to develop fully. Radishes germinate quickly, typically within 3-6 days.
How to Grow
Ensure the radishes receive consistent watering to maintain soil moisture, which helps produce crisp, mild roots. Mulching around the plants can help retain moisture and control weeds. These radishes are perfect for succession planting due to their rapid growth cycle, allowing for multiple harvests throughout the growing season.
How to Save
- Radishes are insect-pollinated, so you’ll need to isolate varieties by up to 1⁄2 mile or stagger plantings to avoid flowering at the same time.
- Staggering can be easy because of the radish’s quick maturity.
- Allow flower stalks to shoot up and seed pods to dry on the plant before picking pods and opening by hand to remove the seeds.
- Seeds will remain viable for up to 5 years when stored in an airtight container.
FAQ
How do De 18 Jours radishes taste?
They have a crisp, mild, and slightly peppery flavor, making them ideal for fresh salads.
Can De 18 Jours radishes be grown in containers?
Yes, they can be grown in containers as long as the container has good drainage and is deep enough to accommodate the roots.
How do I prevent my De 18 Jours radishes from becoming too spicy or woody?
Consistent watering and harvesting at the right time (around 18 days) help keep the roots tender and mild.
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