The new Hibiscus coccineus plant, ‘;Whit XXII’; is characterized by a dense, dwarf, spherical growth habit, typically 20 to 30 inches in diameter covered by dense green foliage during the growing season and accentuated by large scarlet flowers dispersed over the entire form. Flowers last only one day, changing the flowering appearance of the plant daily, but flowering continues for 60 to 90 days depending on growing conditions.