This large shrub to small tree has a short erect stem with wide spreading branches that form an open rounded crown. The dark green leaves are heart-shape and the  yellow funnel-shaped flowers appear solitary from late spring to summer.  

Hardiness zones 10 to 11

Hibiscus tiliaceus is naturally found from subtropical America to Africa, Australia and the Pacific Islands growing in coastal and inland regions commonly along water courses from sea level to an altitude of 800 m (2,624 ft). 

It grows in a wide range of sandy to silty clay soils that are well drained or wet and boggy with a pH range from 5.0 to 8.5 in an open sunny to semi shaded position and is drought and salt tolerant but frost tender. 

The Tree Hibiscus is grown for its flowers and bushy habit. It is planted along borders in small or beach side gardens for screening or as a specimen. It is suitable for coastal regions and establishes in 2 to 3 years and is long lived. It is also grown as a small shade tree and is suitable for damp positions tolerating temporary inundation and saline soils. It develops brittle branches with age and will tolerate a light to heavy prune. ID 119

Hibiscus (hi-BIS-kus) tiliaceus (til-ee-AYS-ee-us)

Malvaceae (mal-VAY-see-ee)
Cotton, Mallows and Hollyhocks