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An image of the plant grown with seed for Radicchio Fiero Seeds - Tall Treviso Type, Deep Maroon Heads with White Ribs, Juicy Crunch, Ideal for All Seasons, Non-GMO
  • An image of the plant grown with seed for Radicchio Fiero Seeds - Tall Treviso Type, Deep Maroon Heads with White Ribs, Juicy Crunch, Ideal for All Seasons, Non-GMO
Radicchio Fiero Seeds - Tall Treviso Type, Deep Maroon Heads with White Ribs, Juicy Crunch, Ideal for All Seasons, Non-GMO
$39.99 CAD
Maturity

75 Days
Sunlight

Full Sun
Watering

Regular

Difficulty

Medium difficulty
Life cycle

Annual
Grow Zones

4 - 9

Quick Reference

Zones

Plant Hardiness Zones describe the average minimum winter temperature for a region. They tell you where a plant can reliably survive outdoors. For example, Zone 5 can handle colder winters than Zone 9. Matching a plant to your zone increases the chance of long-term success.

Days

  • For food crops: Days to maturity is the expected number of days from planting to first harvest. This helps gardeners plan their growing season and time their harvests.
  • For non-food plants: Days to germination indicates how long it usually takes seeds to sprout under normal conditions. This is key for starting seeds successfully.

Types

  • F1 (Hybrid): A cross between two parent varieties. Hybrids are bred for vigor, uniformity, and specific traits such as disease resistance. Seeds saved from F1 plants don’t grow true to type. That means if you try to regrow them from seed, the plant won't necessarily be the same as last year's
  • OP (Open-Pollinated): Varieties that naturally pollinate and remain stable across generations. Seeds can be saved and replanted with consistent results.
  • HM (Heirloom): An open-pollinated variety that has been handed down for many generations. Heirlooms are valued for flavor, tradition, and genetic diversity.

Grows

  • Outdoors: Well-suited for garden beds, raised beds, or open soil, where natural conditions are stable.
  • Windowsill: Compact plants that thrive in containers indoors, often needing only modest light.
  • Anywhere: Highly adaptable plants that perform reliably in both indoor and outdoor settings.

Lifecycle

  • Annual: Grows, flowers, sets seed, and dies in one growing season. Many vegetables and flowers are annuals.
  • Perennial: Lives for multiple years, regrowing each season after going dormant. Often used in landscaping or long-term food crops.
  • Sp. Perennial (Self-Perennializing): A plant that reseeds itself or self-pollinates, giving the effect of perennial growth even if individual plants live shorter lives.

Size

Indicates the recommended container size or soil depth for best growth.

  • “X″ Pot”: The ideal pot diameter (e.g., 5″ Pot), ensuring enough root space.
  • DS (Deep Soil): Requires planting directly in the ground or in a deep raised bed, as shallow pots restrict growth.
 More Details (Opens New Tab)
  • Striking Appearance: Features tall, 21.5 cm (8.5 in) deep maroon heads with bold white ribs, adding a stunning visual and textural contrast to any dish.
  • Flexible Growing Conditions: Thrives in average garden soil and requires full sun exposure, ideal for both beginners and expert gardeners.
  • Continuous Harvest: Plant successively every 10 to 14 days to enjoy a steady supply of fresh radicchio throughout the growing season.
  • Culinary Delight: Adds a crunchy, juicy texture and a vibrant burst of color to salads and gourmet dishes; perfect for culinary enthusiasts.
  • Versatile Planting: Not only perfect for vegetable gardens, but also exceptional as a contrasting ornamental plant in flower beds.

Radicchio Fiero is a striking Tall Treviso variety that brings both beauty and taste to your garden. With deep maroon heads and crisp white ribs, this radicchio is perfect for salads and gourmet dishes. Plant these non-GMO seeds in full sun and enjoy a continuous harvest throughout the season.

Ideal for both vegetable gardens and ornamental flower beds, Radicchio Fiero thrives in average garden soil. Its juicy crunch and vibrant color make it a versatile choice for culinary enthusiasts and gardeners alike. Transform your garden with these stunning and delicious plants!
Size
How much seed do I need?

Seeds per gram: 650
Average germination rate: 85%

Package sizes

  • 25 seeds — 21 plants — covers about 17–27 sq. ft.
  • 100 seeds — 85 plants — covers about 68–111 sq. ft.
  • 500 seeds — 425 plants — covers about 340–553 sq. ft.

Plant growth and coverage

  • Upright, compact heading habit (Tall Treviso type)
  • Height: 21.5–30 cm (8.5–12 in)
  • Spread: 20–25 cm (8–10 in)
  • Spacing: 25–30 cm (10–12 in) between plants; 30–40 cm (12–16 in) between rows
  • Full sun; thrives in average garden soil; suitable for successive sowings every 10–14 days

Choosing a packet size

  • A 25-seed packet is ideal for small garden beds, containers, or cooks trialing a new radicchio in salads and grilled dishes.
  • The 100-seed packet suits home gardeners and small plots planning staggered plantings for a steady harvest through the season.
  • The 500-seed packet is best for larger beds, community gardens, landscapers, or market growers aiming for continuous, uniform heads.
GROWING INSTRUCTIONS

Start sowing Radicchio Fiero seeds outdoors as soon as the soil can be worked in spring. Choose a sunny location and plant seeds 1/4 inch deep. Space seeds 1 inch apart in rows 12 to 18 inches apart.

Germination typically occurs in 7-14 days. Once seedlings reach 2 inches in height, thin them to 8 inches apart. For continuous harvest, sow seeds every two weeks throughout the growing season.

Water regularly to maintain consistent moisture, but avoid waterlogging. Harvest when heads are firm and reach desired size. Enjoy fresh in salads or as a cooked vegetable. Radicchio is frost-tolerant, allowing for extended harvests in cooler climates.
SHIPPING & RETURNS

In Canada, we use fast shipping from our Canadian warehouses. You can expect delivery in 1-3 days.

In the USA, We use our US warehouses, and you can expect your order in 1-3 days, too.

No postaged lettermail or slow shipping from across the world. No customs fees or orders withheld at the border. Tracking numbers for all orders.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. Our return policy covers you for late, damaged or defective products.

 Read Our Shipping & Returns Policy

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