There are many flowers that bloom at the transition of the season, such as hydrangea, lily, licorice, sunflower, and hagi. Early summer flowers, midsummer flowers, and autumn flowers are mixed and blooming. In haiku, there is promise that must include season words to decide the season title, but the promise cannot be kept due to the above circumstances. This is an annoying situation. Not only this. Nowadays, varieties are improved and some flowers bloom all year round, while there are names of flowers that can’t fit in seven sounds, let alone five sounds, which complicates the problem. This is one of the reasons why free haiku is born.

折節の移り変わりに咲く花は紫陽花あり、百合あり、萱草あり、向日葵あり、そして萩ありです。初夏の花、真夏の花、そして秋の花が入り乱れて咲いています。俳句には、季語を入れて季題を決める約束がありますが、これでは約束事が守れません。悩ましい状況です。これだけではありません。今では品種改良が進み一年中咲く花もあれば、五音はおろか、七音でも収まり切れない花の名前があったりで、とても約束事を守れない事が沢山あります。自由俳句が生まれる理由の一つです。