Radish: Usually grown as an intercrop, being sown between mid-winter and early spring, and again in late summer and early autumn under cloches. If grown on their own, a low barn cloche will cover five or six rows. Sweet Corn: this can be sown direct under cloches in southern districts during late spring in well-prepared ground. Sow two seeds at each station, and remove the weaker seedling. In cold districts, plants are best sown in pots in a greenhouse in mid-spring for late spring planting. Normal spacing is 35-45 cm (14-18”) between plants when either sown or transplanted. A row ofcan be sown either side of a single row of . It is better to grow corn in staggered double rows, with about 30 cm (12”) between rows, under large cloches, to assist fertilization. Remove the cloches when the foliage touches the roofs.