Q.My Hibiscus Plants Have Not Bloomed For 2 Years. . They Bloomed
They bloomed just fine before that
Certified GKH Gardening Expert
There are perennial as well as tropical hibiscus plants so here is information on both. Often, if a plant isn't flowering, it is not getting enough light or proper nutrition.
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/how-to-care-for-hibiscus-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/pests-on-hibiscus-plants.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/light-requirements-for-hibiscus.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/outdoor-hibiscus-care.htm
https://www.gardeningknowhow.com/ornamental/flowers/hibiscus/pruning-perennial-hibiscus.htm