Description
Botanical name
Raphanus sativus
Family
Brassicaceae
Spacing
16 per square foot in 4 rows of 4
Depth
Plant seeds 13 mm (½”) deep.
Requirements
Full sun and cool weather. pH around 6-6.5.
Germination
Seeds will sprout in 5-7 days.
Pests
Watch for slugs. Pick and destroy.
Timing
Plant as early as possible in April. Radishes do not grow well in hot weather. For a fall harvest, plant in early September.
Growing
Thin plants to one per spot. Keep the area weeded and watered. Don’t leave them much past their harvest date. Old radishes are tough and pithy. Replant for a second harvest before the hot weather strikes.
Harvest
23 days
Season
Cool, annual
Links
How to transplant radishes
Thinning radish seedlings
The French Breakfast radish
French Breakfast radish tartines