Let me ask you a question. You are going to plant some vegetable plants or flower plants in your garden. You have your choice of planting on a sunny day or a day that is cloudy and a bit cool. Which day is the better day to put your plants in the ground?
The answer is the day that is cloudy and a bit cool. Let me tell you why this is the correct answer.
When you take a plant out of a pot and then replant the plant in your garden or into a container outside, the plant needs to get a root system established in the soil. Once the plant is in its new home, it must cope with sun and wind that will be taking moisture out of the leaves. The roots must then bring moisture out of the soil and bring it up to the leaves. If the plant is trying to establish a new root system and trying to get moisture to the leaves, the plant can be stunted in its growth.
On a cloudy and cool day, the roots don’t have to supply a lot of water to the leaves. If you have even just a 24-hour period without strong sun and warm weather, your plants will be able to get their roots off to a better start in their new home.
After your plants are in the ground, you may notice that after a day or two, the leaves begin to turn white. This is not a plant disease, but rather a case of sunburn or windburn on the leaves. If you purchased plants that had been in a greenhouse or if you raised plants in your house, the plants may not be acclimated to being out in the wind or the intense sun. This condition happens often when plants are put into the garden on a day that is sunny and windy.