Why is my hibiscus not making flowers?
The reason for hibiscus not flowering is usually because of too much shade, drought stress or too much fertilizer. Nitrogen promotes foliage at the expense of flowers and too much phosphorous reduces hibiscus blooms by immobilizing nutrients in the soil.
When should hibiscus be pruned?
'In the US the best time to prune is in spring or when the weather starts warming up. Never prune tropical hibiscus in fall as you risk freezing the new and still tender growth. Also, it's recommended to bring your tropical hibiscus inside in winter if it's planted in a pot.
Is coffee grounds good for hibiscus plants?
While this might seem like an unlikely item to use as fertilizer, coffee grounds actually provide nitrogen and potassium to the hibiscus plant. Simply dry the used grounds on a newspaper in sunlight for two or three days then sprinkle it over the soil from the trunk continuing outward to where the branches end.