Nothing says spring in the garden like a quick-to-harvest radish. 'Rudolf' has uniform 1″-round crunch roots that resist getting pithy when grown in the cool weather of spring or fall. Radish greens are edible, too, and they pack a punch in salads but are also delicious sautéed. A 2008 Royal Horticultural Society award winner. Seeds are pelletized with an organic coating for easy handling.
Botanical Name: Raphanus sativus
Days to Maturity: 25 days
Hardiness: Frost-tolerant annual
Plant Dimensions: 6″–8″ leaf tops
Variety Information: 1″ bright red roots with crisp, white interior.
Type: Spring/Summer radish (Learn more)
Attributes: Good for Containers
When to Sow Outside: RECOMMENDED. 4 to 6 weeks before your average last frost date, and when soil temperature is above 40°F, ideally 65°–85°F. Successive Sowings: Every 1 to 2 weeks until late spring. Sow again in late summer until 4 weeks before your average first fall frost date.
When to Start Inside: Not recommended; roots sensitive to disturbance.
Days to Emerge: 5–10 days
Seed Depth: ½”
Seed Spacing: A group of 3 seeds every 3″
Row Spacing: 12″
Thinning: When 1″ tall, thin to 3″ apart
Harvesting: Harvest when radish is no larger than 1″ in diameter. If allowed to grow bigger, 'Rudolf' will get pithy and hot.
This packet sows up to 7 feet. 80 seeds in packet.