Raphanus sativus (radish) is a cool-season crop from Southeast Asia belonging to Brassicaceae family. Seeds germinate rapidly within days and mature in 3-5 weeks.
Before sowing
Soak
24 h Optional seed priming with ascorbic acid or KNO3 improves germination
Seed priming (soaking for 24h followed by desiccation) improves germination rates and vigor
Sowing
Substrate
Sandy loam, well-drained, loose, fertile soil rich in organic matter
Depth
0_5cm
Temperature
21°C
Moisture
alta
Container
Direct sowing outdoors or containers at least 12 inches deep
What to expect
Step 1
Pre-treat the seed
Step 2
Sow at 0_5cm · 21°C
Day 3–10
Seedlings emerge (~85%)
Tips
Keep soil evenly moist but not waterlogged. Avoid compacted soil. Light is not inhibitory but darkness initially (24h) may help uniform germination. Seed priming with ascorbic acid enhances germination. Maintain temperatures 50-75°F for best results. Press seeds firmly into soil.
Sources: NCBI PMC8949023, Wikipedia Radish, Old Farmer's Almanac, UMN Extension, USDA, Harvest to Table, Utah State Extension, Gardenary
