Lady Baltimore Hibiscus perennials grow well in full sunlight; however, they will grow in partial shade, but not as successfully. If your plant is grown in partial shade, its flowers will not blossom as big as they would in full sunlight conditions. However, if you live in an area with hot summer weather, your plant will benefit from midday shade time. The midday summer sun can be too hot and bright for your plants and could dry out their soil faster. Therefore, shaded time will give your Hibiscus plants a break from too much heat exposure.