It is hard to choose which perfume to wear. It takes me at least an hour every morning.
This is the noun version of 香, making it have the same meaning, fragrance.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You didn't learn that reading with this kanji, so here's a mnemonic to help you: The fragrance you smell is somebody's 顔 (かお). Just imagine smelling the fragrance of a bunch of people's faces. Yum!