Radicchio Rossa Treviso Red Seeds

Grow crisp red-and-white radicchio for colourful salads and cooked dishes. Rossa Treviso Red brings the distinctive, pleasantly bitter flavour of leaf chicory to a cool-season vegetable garden.

Ready to grow your own colourful radicchio? Follow our step-by-step Radicchio Grow Guide for sowing, transplanting, regional timing and advice on harvesting young leaves or fuller heads.

Quick Grow Facts

• Plant: Rossa Treviso Red radicchio, Cichorium intybus; a compact, upright leaf chicory. No Precoce or Tardivo selection is specified.
• Seed form: raw seed; follow the current packet's treatment warnings. Raw does not mean confirmed untreated or suitable for sprouting.
• Sowing season: late summer to autumn, adjusted for local heat, rainfall and frost.
• Position: full sun in cool weather; protect young plants from harsh heat.
• Sowing depth: 5 mm (0.5 cm) outdoors; a light covering of fine seed mix for modules.
• Germination: 7–14 days is the listed outdoor window; the supplier's indoor method allows 10–21 days at around 20°C. Keep evenly moist, not waterlogged; no blackout or presowing treatment is specified.
• Transplanting: move strongly growing plants with several true leaves and a rooted plug after about a week of gradual hardening off. Keep the crown clear of soil.
• Spacing: 30 × 30 cm for full plants. For a baby-leaf-only row, general chicory guidance allows about 5 cm between seedlings; harvest young instead of expecting crowded plants to head.
• Growth and size: local Red Treviso guidance gives about 15–20 cm foliage height; allow a 30 × 30 cm planting area. Exact mature spread and lot-specific height are not supplied. No staking or routine pinching.
• Harvest: pick usable young leaves, or cut developed heads when firm. The label's 60–80 days, supplier listing's 90–110 days and supplier sheet's 60–65 days after sowing do not establish one reliable clock for this lot.
• 2 g raw seed: approximately 1 300 seeds.
• 50 g raw seed: approximately 32 500 seeds.

Why Grow This Variety

• Red foliage and contrasting pale ribs bring colour and crunch to the kitchen.
• Enjoy young leaves in mixed salads or fuller heads grilled, sautéed or added to pasta and risotto.
• Cool weather supports the red-leaf crop; younger or warmer-grown plants may remain greener and looser.

Growing Notes

• Use fertile, freely draining soil and keep growth steady with regular moisture.
• Water at soil level where possible, preserve airflow and protect young plants from slugs, snails and harsh weather.
• The label image's “30m” spacing is a typo: use 30 cm between full plants and rows.
• Do not assume that this pack needs tying, root lifting, water forcing or a compulsory autumn cut-back. See the guide's variety and harvest notes.
• Follow packet safety instructions; do not eat the seed or assume it is certified for sprouting or microgreens.

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