Notes Cotton thrives on heat, but does not respond well to overwatering. Companions Basil, Garlic, Cilantro, Mint, Sage, Dill, Onion, Onions and Sunflower. Spacing Single Plants: 1' 11" (60cm) each way (minimum) Rows: 1' 5" (45cm) with 3' 3" (1.00m) row...