Hibiscus syriacus is a large shrub that in exceptional cases grows into a small tree about 4 m tall. Branching is dense and the shrub has a somewhat stiff structure. The twigs are grey-green and the smooth, grey bark is quite light in colour. The leaves are variable in shape and size. The striking, bowl-shaped flowers open in the second half of summer to early autumn. Depending on the cultivar, the flowers are white, pink, blue-purple to dark pink-red. In many cultivars, the flowers have a striking red-coloured heart, whose veins radiate outwards to a greater or lesser extent. A characteristic feature of Hibiscus is that the stamens are attached to the style. This gives the typical and very recognisable flower shape of H. syriacus. In some cultivars, the flowers are half-filled or even completely filled. The semi-filled cultivars in particular belong to the modern, strong and well-flowering assortment. Because the flowers are relatively large and very colourful, a flowering H. syriacus gives a summer feeling.
Contrary to what the name suggests, H. syriacus does not come from Syria, but from China and India. It is a real heat lover, preferring a place in full sun. H. syriacus likes slightly acidic to slightly basic, nutritious, moist but sufficiently permeable soil. Wind resistant as a plant, but the flowers can be damaged during summer storms.
Hibiscus syriacus môže dorastať do výšky 2-4 m v závislosti od podmienok stanovišťa a klímy.
Hibiscus syriacus rastie priemerne rastúci a môže dorastať do výšky 2-4 m v závislosti od podmienok stanovišťa a klímy.
Správny čas na výsadbu stromu je mimo vegetačné obdobie. V strednej Európe môže byť Hibiscus syriacus so zemným balom vysadený od polovice novembra do konca apríla, avšak závisí to veľmi od klimatických podmienok a druhu stromu.
Hibiscus syriacus kvitne v júl, august, september.