Hibiscus syriacus 'Amplissimus'
DOUBLE RED ALTHEA
A medium size, upright-growing, slender, well-branched shrub that grows 8 to 10 feet tall and 4 to 6 feet wide with bright green serrated leaves. It is easily grown, tolerating a wide range of soil and moisture conditions. It produces an abundance of red blossoms in late summer.
USDA Z5 - Cold Hardy to -10 to -20(F)