She began making art professionally with flower arrangements and silk landscape collages.

[3][4] After her husband was involuntarily committed, she was forced to raise her children as a single mother, and was unable to get a divorce until laws changed in 1973.

[7] Disputes about their art loan program eventually led to a 2016 court order mandating that Wildevuur pay her son €15,000.

[2][10] Wildevuur's paintings are primarily of flowers and landscapes,[3][5] though animals, clowns, and portraits are also common subject matter.

[5] She painted the portraits of many prominent Dutch figures, including King Willem-Alexander, Queen Máxima, and Paul van Vliet.