Radish Alpine White D2473A (White) 200 Seeds by David's Garden Seeds Days to Maturity: 58 Non-GMO, easy to grow and hand packed here in the United States by David's Garden Seeds The smooth, attractive roots are white with green shoulders Alpine, with its half-long 5 to 6 inch by 2 to 2 1/2 inch roots, is the most common type grown in Korea Germination rate: 70%