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Growing radishes Guide 
A Quick Overview

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.

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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 , 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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