[1][2] Wiehe was born on 21 October 1910, in Labourdonnais, Rivière du Rempart.
He became the first director of the Mauritius Sugar Industry Research Institute (MSIRI).
From 1968 to 1973 he was Vice-Chancellor of the University of Mauritius, where the Paul Octave Wiehe Auditorium was named in his honour in 1975.
of London University in 1957 and was awarded the CBE in the 1958 Birthday Honours for his work as director of MSIRI, helping to turn it into leading research organisation.
[4] He published papers on plant pathology, ecology, and on the flora of Mauritius.