Salad Greens ROCKET 1000 SEEDS £1.70 Quantity: at £1.70 each Add To Basket Fast growing plant for use in salads. The leaves have a special rich, spicy flavour. Sowing instructions: Sow outdoors any time from March to September in rows 15 cm apart. Growing instructions: The growing season can be extended by sowing in a tunnel or greenhouse from August to February. Rocket tends to bolt during hot weather. Average contents: 1000 seeds.