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Fiero(F1) Radicchio Seed


Product ID: 2278

Upright, deep maroon radicchio.

Fiero's deep maroon heads with contrasting white ribs are large, very attractive, and impressively early. Good uniformity and sure-heading ability offer superior yield potential. Larger and more deeply colored than Trevisio Red Preco. Suitable for all cropping seasons. Avg. 25,550 seeds/oz. Packet: 200 seeds.

Product Price Qty
2278Packet  $7.95 
2278500 Seeds  $18.50 
22781,000 Seeds  $32.15 
22785,000 Seeds  $135.25 
227825,000 Seeds  $584.75 

Quick Facts

Days to Maturity or Bloom:   66

Plant Cycle:   (A)  

Shipping Information & Notes

Note: We cannot ship 5M, 25M and 100M sizes to Canada.

Growing Information

Chicory, Radicchio

CULTURE: For North American production, these varieties are vast improvements over older types, but are still not perfectly uniform or completely predictable. Although bred for specific seasons, it is still best to trial more than one variety, using succession plantings to determine which one suits your conditions.
Radicchio is hardy and can be planted as early as the soil can be worked. It is a cool weather crop and grows best at temperatures of 60–65°F (15.5–18.3°C). Careful variety selection is important for hot weather plantings. Sow every 3 weeks for a continuous supply of fresh radicchio.

Radicchio seed can enter thermal dormancy when exposed to high temperatures above 77°F (25°C). Optimum germination results at soil temperatures of 60–68°F (15.5–20°C).
TRANSPLANTING: Sow in flats, 4 seeds/in., or in 3/4" plug trays, barely covering seeds with fine vermiculite, 3–4 weeks before transplanting outdoors. Shade the flats on sunny, warm days if necessary to keep the soil surface cool, below 75°F (24°C), until germination. If sowing into flats, transplant 1–2" apart into flats, pots, or cell-type containers about 2 weeks later. Harden seedlings by reducing water and temperature for 2–3 days before planting outdoors. Properly hardened transplants can survive temperatures as low as 20°F (-6°C).Transplant 8" apart in rows 18" apart. Transplant shallowly so that the base of the plant will be slightly above the soil to discourage bottom rot.
DIRECT SEEDING: Seeds will germinate from 41–85°F (5–29°C), but the highest germination percentage will occur around 75°F (24°C), depending on the variety and seed lot. Sow seeds 1" apart, rows 12–18" apart. Cover seed lightly, about 1/8", and firm soil gently. Thin to 8" apart; thinnings may be transplanted. Dry soil must be watered to ensure coolness and moisture, and for uniform germination.
SALAD MIX/BABY LEAF: Sow 2–4" wide bands, 6 seeds/in. Cover seeds lightly, about 1/8". Firm soil gently, and keep surface moist until emergence in 3–5 days (or longer in cold weather). Harvest at 5–6 weeks.
NOTE: Radicchio grows best in cool or mild weather, i.e. fall, winter, and spring. Summer crops can be successful if nights are cool (below 60°F/16°C).
From transplanting; add 14–21 days if direct seeding.
1M/220'; 5M/1,100'; 10M/2,200'; 131M/acre at 3 seeds every 8" in rows 18" apart.
Avg. 500 plants/M (2 seeds per cell thinned to one seedling).
SEEDS/OZ.: See individual varieties.
200 seeds unless otherwise indicated.

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