Answer: Talking to your plant should boost its morale. It is stressed, but I'm not sure why, given the excellent care it has been receiving. Smallish leaves can indicate nutrient deficiencies, or nematode damage to the roots. since your plant is in a container, it probably is not being attacked by nematodes; since you fertilize as recommended, it probably isn't lacking any nutrients. So, I'm stumped! If it were my plant, I think I would unpot it, brush the old potting soil off the roots and repot it in a slightly larger container with fresh potting soil. This will give you an opportunity to inspect the roots to make sure they are healthy. Diseased roots will be rusty colored on the inside; healthy roots will be creamy white on the inside. A little root pruning (if necessary to remove diseased or damaged roots) won't hurt your plant and may help it recover its vigor.
Best wishes with your hibiscus!
Q&A Library Searching Tips