Other Features
Radishes grow when planted outdoors, where they need at least six to eight hours of direct sunlight a day, A fast-draining, fertile, sandy or loamy soil with a soft, loose texture is ideal, with a soil pH ranging between 5.8 and 6.8, It prefers well-drained soils that have been loosened to a depth of at least 8 inches. Consistently moist soils promote even growth and avoid pithy roots, White radish varieties thrive when sown two to three weeks before the average last spring frost date when soil temperatures exceed 55 degrees Fahrenheit, They can sprout at temperatures ranging from 40 to 85 degrees.