The leaf of "Tilia cordata" is also considered a national symbol of Slovenia. The larvae have been recorded feeding on "Tilia cordata" and "Quercus robur". "Tilia cordata" is widely grown as an ornamental tree. The larvae feed on "Betula", "Tilia" (including "Tilia cordata") and "Carpinus" species. Although "Tilia cordata" is believed to be stronger, "T. americana" is also used medicinally. It differs from the better-known "Tilia cordata" in having somewhat smaller leaves, bracts and cymes. "Tilia cordata" survives best in a soil pH range of 5.0 to 8.0.