Idioms

Question 1

花に嵐

Answer 1

はなにあらし

Blossoms bring storms

Fatalistic insight about how misfortune looms over that happiest moments

Question 2

花よりだんご

Answer 2

Sweets over flower

Based on the flower viewing in Japan. Preferring food over flowers means you are more inclined to the practical than the aesthetic/philosophical

Question 3

芋(の子)を洗うよう

いものこをあらうよう

Answer 3

Like washing (a bucketful of) potatoes

When a place is jam packed (especially beaches)

Question 4

言わぬが花

Answer 4

Not saying is the flower.

It’s better to not say something, that say something ill spirited you are going to regret.