Whenever possible, you should transplant your vegetable plants on a cloudy day or early in the evening when the sun is at its lowest point. However, if you must transplant your vegetables in full sun, there are other ways to minimize transplanting stress. Shade is only one of the needs of newly transplanted vegetable plants. They also need plenty of water and healthy soil that encourages growth. As long as those needs are met, your vegetables should transplant successfully.
Keep your vegetable plants inside until you are ready to put them into the ground. In the meantime, make sure that the roots of your plant are moist.
Prepare the planting bed. Hand or roto till the soil to a depth of 4 inches.
Spread 2 to 3 inches of aged compost over the planting area.
Till the soil again, to a depth of 4 inches.
Carefully remove your vegetable plants from their current containers. Damaging the plants at this point could cause them stress. Handle the plants by their leaves, not by their stems. Damaged leaves will grow back easily. A damaged stem will restrict a plant's ability to absorb nutrients.
Plant your vegetable plants.
Water the plants heavily, but don't drown them. Stop just before water begins to pool on the surface. When planting in full sun, be careful not to get any water on the plants' leaves.
Lightly water your transplants with a weak solution of sugar water. Mix 1/4 cup of sugar per liter of water and fill a watering can with it. Give each transplant a quick drink, poured directly at the roots.
Spread 2 inches of organic mulch. This will keep the full sun from drying out the soil too quickly.