Camellias are mostly grown in the south, where the daylight is long during spring and summer. Select a location with direct morning sunlight and some afternoon shade.
Potting Soil Mixture:
Transplant your camellia to a 1-2 gallon container. Your soil mixture is one of the most important aspect of growing camellia. Wet or dry soil can lead to loss of camellia quickly. The soil mixture need to provide water AND oxygen to the roots. It needs to be moist, not wet. Wet soil can quickly rot the roots. Premixed Potting soil in garden centers general contain mostly fine peat moss. Peat moss will retain too much water and prevent oxygen to the root. Use a premix soil specifically for camellias. If it is not available, make your own. Below are a couple of recommendations:
Good potting soil + perlite in equal parts.
Good potting soil or garden soil + composed bark + perlite in equal parts
The peat moss will breakdown and lower the PH level of the soil. Commercial potting/garden soil composition varies between brands; adding perlite is a great way to ensure water drainage.