Several species have been introduced to Europe as garden specimens, most notably New England aster (Symphyotrichum novae-angliae) and New York aster (Symphyotrichum novi-belgii).
sˈɛvɹəl spˈiːsiːz hɐvbɪn ˌɪntɹədˈuːst tə jˈʊɹɹəp æz ɡˈɑːɹdən spˈɛsɪmənz, mˈoʊst nˈoʊɾəbli nˈuː ˈɪŋɡlənd ˈæstɚ sˈɪmfɪˌɑːtɹɪtʃəm nˈoʊvəˈæŋɡlɪˌiː ænd nˈuː jˈɔːɹk ˈæstɚ sˈɪmfɪˌɑːtɹɪtʃəm nˈoʊvibˈɛldʒɪˌaɪ.