Champion Radish Raphanus sativus

Easy

Starting indoors 

Choose container of at least 1.5 ft deep for root development with adequate drainage. Plant radish seeds 1/2 inch into soil, approximately 4-6 inches apart. Cover loosely with soil & water thoroughly. Water regularly or about every 2 to 3 days in dry conditions until 4 to 5 leaves appear on sprout. After that, reduce watering to as needed. Container best kept outdoors for optimal growth

Direct sowing in garden

Plant 4 to 6 weeks before expected last frost. Direct sow about 1/2 inch into soil, approximately 4 to 6 inches apart. Cover loosely with soil & water thoroughly. Radish plants should mature for vegetable harvest between 40 and 60 days. To grow for seed, leave some plants growing beyond vegetable stage

Easy

Goes to seed early to mid summer with a propensity to bolt. Seed pod will form once flowers fade. Once pods turn brown & dried, cut off pod stalk & gently shake or rub pods to release seeds. Separate from chaff and store in a cool, dry, dark space. When stored correctly, seed generally viable for up to 5 years

🌅 Outdoors
Preferred conditions

🏠 Indoors 

Make sure the container supports root development. Place in area that meets light requirements. 

☀️ Full Sun

• Temps: 🌡️Prefers temps between 40 to low 60 °F. Bolts in heat once temps reach above 65 °F

• Hardiness Zones: 🗺️ 2 to 11  (2023 USDA Plant Hardiness Zone Map - Michigan)

• Humidity: 🌫️ Tolerates high humidity with moisture conditions met and proper air circulation

• Water Conditions: 💧 1 inch of water per week

• pH: 🧪 Acidic to neutral 

• Soil conditions: 🌱 Loamy, sandy & well-draining. Cannot be heavy or compacted

Summer

Spring planting is optimal for seed harvest, good for vegetable harvest
Autumn planting is unlikely to set seed when planted in Autumn, but better suited for vegetable harvest