How long does it take for hibiscus to grow? I went to a nursery and saw plants about 2 feet tall. The only answer to my question was they grow fast. If the plant starts out about 2 feet tall, how long will it take, on average, to get 3 feet? 4 feet? It will be in my backyard with full sun almost constantly. I live in Southern California, so the weather is pretty much constant, in the 70's and 80's all the time.
Hibiscus Growth Rate
Certified GKH Gardening Expert
Most of the hardier hibiscus varieties (on average) will grow about 12-18 inches each year and generally reach their mature height within two to three years. Typically, those with more frequent watering will grow and establish themselves quicker.