This is Pavonia praemorsa, also known as Yellow Mallow, and Yellow Pavonia. This plant likes to live in full sun to partial shade where it blooms all year long. This plant attracts many birds including Hummingbirds, and it is also popular with the bees and butterflies. The first blooms will be non-opening, self-pollinating flowers, but these will be followed by normal flowers. This is a popular choice for people who want to sheer this plant into a compact shrub. USDA Hardiness Zones 8 to 11