Treviso Radicchio Seeds 1485 Heirloom Vegetable. A challenging crop to grow but a visual delight for the eyes and a culinary treat for the taste buds. The top growth of this radicchio is similar in shape to Belgian endive. Elongated heads of crisp, green leaves that become deep red and veined with white with the arrival of cooler temperatures later in the season.
How to Grow
550 seed/gram. Similar to growing heading type lettuce. Plant seed in successive crops every 2 weeks from April to mid June as long as weather is cool. Sow seed 3 mm (1/8″) deep and 2.5 cm (1″) apart with the rows 40 cm (16″) apart. Thin to 30 cm (12″) apart. Keep evenly watered as water stress can lead to premature bolting and leaf bitterness. Fall crops can be attempted by seeding in mid to late August. This is a challenging plant to grow.