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5-10 (Find your hardiness zone.)
When to Plant:
Plant seeds outdoors between late winter and early spring. Do successive plantings every few weeks to extend your harvest.
Incorporate compost into the top 6 inches of the soil before planting seeds. Radishes do best in slightly crumbly soil.
Thin seedlings to 2 inches apart in rows 6 inches apart.
Weed carefully so as to not disturb delicate root structures.
When to Harvest:
Radishes can be ready in as little as 21 days. Their taste improves with a light frost, but you can begin picking them when they are a useable size. Do not let them grow too long or they become woody.
One packet of seeds can generate hundreds of radishes.
Difficulty Rating (1-5):