flower – hwah
Written as huā or hua
To remember that flower is pronounced hwah (hua) in Mandarin Chinese, use the following mnemonic:
Flower necklaces are worn in Hawaii (hwah).

Tones
Hwaa (hawaii) is a 1st tone with — as an accent.
Associate Hawaii, a 1st tone, with a string or tie or tying or knot. See Tones and Mnemonics.

In Hawaii, you get tied up with a string of flowers.
Remember
Hwaa = 1st tone = —