Kale RED RUSSIAN 350 SEEDS £1.80 Quantity: at £1.80 each Add To Basket Grey-green leaves with a red midrib and stem. Use the leaves when they are small for stir-fry or salad. Hardy plant that can stay outside in winter, will tolerate frost. Sowing instructions: Sow early in spring for a summer crop or in July to August for a winter crop. Sow the seeds 15 cm apart in rows of 45 to 55 cm. Average contents: 350 seeds.