bˈæŋksaɪd ˈoʊpən spˈeɪsᵻz tɹˈʌst bˈɑːst ɪz ɐ hˈɔːɹɾɪkˌʌltʃɚ, ɡˈɑːɹdənɪŋ ænd mˈænɪdʒmənt ʌv ˈɜːbən ˈoʊpən spˈeɪs tʃˈæɹᵻɾi, bˈeɪst ɪn bˈæŋksaɪd, ðə sˈʌðɚn bˈæŋk baɪ ðə ɹˈɪvɚ tˈɛmz, sˈaʊθwɔːɹk, sˈɛntɹəl lˈʌndən, ˈɪŋɡlənd.
Bankside Open Spaces Trust (BOST) is a horticulture, gardening and management of urban open space charity, based in Bankside, the southern bank by the River Thames, Southwark, Central London, England.