Once your plants leaves are 6 inches in size, they are ready to be planted outside.
Plant outside only after all danger of frost has past. Care should be taken not to disturb the roots. Feed should only be given to established and rapidly growing plants after they have been replanted. Tobacco requires a lot of nitrogen and potash, which can be supplied using standard garden fertilizer. You may want to grow your tobacco using only organic fertilizers.
Ideally, space the tobacco plants about 2 ft. apart in rows 3 ft. apart. Transplant outside in the evening or when it is cloudy and overcast to avoid the youngsters from drying out. Water plants thoroughly after transplanting and water daily until plants become established. Like tomato plants, the branches (suckers, offshoots), should be removed to focus the plants energy on the large leaves.
Tobacco plants generally require full to partial sun to grow properly. Tobacco is ready to be harvest after 60-90 days after planting.