Fast-growing and easy-to-grow broccoli with tender stems, also known as green sprouting broccoli, is a popular alternative to round headed varieties. Sweettasting bluish-green stems are delicious picked fresh and lightly steamed.Sow seed thinly 6mm (¼in) deep, and cover with a sprinkling of dry vermiculite or finely sieved compost. Place the seed and tray in a propagator or seal inside a polythene bag and keep at around 18-21?C (65-70?F) until seeds germinate which takes 4-7 days.When the seedlings are large enough to handle, transplant into 7.5cm (3in) pots or multi-cell trays. Plant out once the plants are approximately 10-15cm (4-6in) tall, into well-prepared soil allowing 38cm (15in) apart each way. Alternatively, sow thinly in a well-prepared seedbed, 1cm (½in) deep, and plant out when large enough to handle allowing 38cm (15in) apart each way. Sow successionally forextended harvest.