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Growing radishes Guide 
A Quick Overview

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Growing radishes quick reference guide

Growing radishes Guide

The growing radishes quick reference guide below is designed as a quick overview of growing radishes. For more details on the different stages from seed to harvest go to the related pages link.


Quick Reference Guide

Veggie Garden Dairy
Vegetable Radish
Also Known As
Botanical Family - Brassicaceae, Genus - Raphanus, Species - R. sativus
Plant Type Most common varieties are Cool season - annual - root vegetable, with some varieties that grow well in summer
Frost Tolerance Hardy
Planting Position Sunny position - Will do alright in partial shade - requires a minimum of 4-6 hours of direct sunlight daily.
Seed Viability 4 years
Germination 3-6 days at 40-80 F (4-27 C)
Growing Temp 50-70 F (10-21 C)
Seed to Transplant Direct sow only
Planting Method Direct sow
When to Plant Spring and again in mid-summer for fall-winter harvest
Time to Plant As soon as 2 - 4 weeks before the average date of the last 32 F (0 C) freeze in the spring in your area but not before soil temperatures are consistently 40 F (4 C) and above.
Seed Sowing Direct sowing radish seeds - 1/2 inch (12 mm) deep. 1-2 inches (25-50 mm) apart in rows 12-18 inches (30-45 cm) apart - broadcast over an area and cover with 1/2 inch (12 mm) of soil.
Plant Spacing Direct sow radish seeds only - thin to 3-4 inches (7-10 cm) apart (depending on size of variety) in rows 12-18 inches (30-45 cm) apart
Soil Conditions Well drained - Low to moderate organic matter - Low to medium fertility
Fertilizer Low fertilizer needs, 2-3 quarts per 100 sq feet (2.2-3.3 liters per 9.3 square meters) preplanting of All-Purpose 5-5-5 Organic Fertilizer icon, same rate for each side dressing.
When to Fertilize 2 weeks before planting
Days to Harvest 30-60 days - depending on conditions and variety

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