Hibiscus syriacus 'Red Heart' has white trumpet shaped flowers with red centers. This is a deciduous shrub or small tree that grows 8 -10 feet high and blooms in mid summer to fall. It is hardy in zones 5 – 8. Hibiscus syriacus 'Red Heart' has received the Royal Horticultural Society's Award of Garden Merit. The name Hibiscus came from the Greek word “hibiskos” that meant “marshmallow.” The sticky root or stem of some plant in the mallow family was used at one time to make marshmallow confections.