- Name: Japanese Minowase Radish - Other Common Names: Daikon - Scientific Name: Raphanus Sativus - Color: White - Plant Seeds: Spring Or Fall - Harvest: 45 Days - Hardiness Zone: Annual - Plant Height: 9 - 12" - Plant Spacing: 2 - 3" - Light Requirements: Sun - Soil & Water Preferences: Average - Quantity: 500 Seeds - Other: Minowase Is An Heirloom Japanese Radish. These Radishes Are Amazingly Huge, Measuring Up To 2 Feet Long. They Are 3” Wide & Tapered. The Lovely White Roots Are Sweet, Mild, & Stay Crisp. The Japanese Minowase Radish Is Also Great For Greens. They Are Very Tender, & Not At All Bitter. These Quick Maturing Tasty Treats Can Be Spring Or Fall Planted.