To acclimate your plant to the higher light levels of summer, you can limit exposure to light in time and intensity. Put the plant somewhere that it will get a short period of direct light in the early morning or late evening, when the light is less intense. You may also put it in the shade of a tree or a lathe covered patio. As new leaves appear, give it more light so that they are formed in the higher light level. Heat Yes, heat.
Tropical hibiscus are tropical , and they like it hot and humid .
Light and fertilization were the same. The hot plants grew several inches, the cool plants didn't grow at all. Since this was during the winter the results were pretty dramatic. After lights were added to the warm plants, many began to flower. How you prune your plant will have a big impact on how happy you are with it in the long run.