Radicchio Seeds - Red

Red radicchio seeds produce cool-season leafy plants commonly grown as annuals or biennials depending on climate. Plants form compact heads with upright outer leaves and are well suited to garden beds, raised beds, and container growing. Radicchio performs best in cool to mild climates and develops properly when grown during spring or fall. It adapts well to a range of soil types when drainage is good and moisture is consistent, making it suitable for home gardens and small-scale planting.

Features

• Cool-season leafy growth habit

• Compact head-forming plant structure

• Suitable for garden beds, raised beds, and containers

• Performs best in cool and temperate climates

• Adaptable to well-drained soils with regular moisture

Specifications

• Scientific Name: Cichorium intybus

• Common Name (US): Radicchio

• Seed Type / Variety: Red

• Growth Habit: Upright leafy annual or biennial

• USDA Hardiness Zones: 3 to 9

• Planting Season: Spring and fall

• Sowing Season:

  • Indoors: February to March, August

  • Outdoors: March to May, August to September

• Germination Time And Conditions: 7 to 14 days; soil temperature 55 to 70 F

• Sunlight Requirements: Full sun to partial sun

• Soil Requirements: Well-drained, fertile soil with organic matter

• Watering Needs: Regular watering; consistent moisture

• Mature Plant Size: 8 to 12 inches tall, 6 to 10 inches spread

• Plant Spacing: 8 to 12 inches apart