The memorial will be held at 4:30 p.m. Saturday in room 100 of the Boise Centre in downtown Boise.
Kadir and eight others were injured after police say a 30-year-old Los Angeles man attacked them in an apartment complex off State Street. The man's connection to the victims and his motive are still unknown.
Kadir was flown to Salt Lake City for treatment, where she died from her injuries Monday.
Anyone who comes to the memorial has been asked to wear pink to show their support for Kadir and her family. Pink ribbons will also be passed out in her honor.