Hibiscus syriacus 'Double Red' (Althea)

Hibiscus syriacus 'Double Red', commonly known as Althea, is a deciduous shrub that belongs to the mallow family. It is known for its beautiful double red flowers that bloom from late summer to early fall. The flowers attract butterflies and hummingbirds. Althea has a moderate growth rate and can reach a height of up to 10 feet with a spread of 6 to 8 feet.