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　Kibana cosmos (also known as Kibanaakizakura), which colors the flower garden from late summer to early autumn in the Hamarikyu Onshi Garden, is at its best. Kibana cosmos is an annual plant of the family Asteraceae, which is distributed mainly in Mexico and Central America and northern South America. Originally, Kibana Cosmos had only a yellow system, but since the red variety "Sunset" was bred by Masayuki Hashimoto, varieties have been produced one after another, and it is said that the color has become richer.

In the Hamarikyu Onshi Garden, the famous flower "Sunset" (orange), which was improved in Japan and won the gold prize in the United States, and Sunny Yellow (yellow) were planted, but now it is awakening orange There are two varieties, "Diaboro" and the refreshing yellow "Dwarf yellow".　　　　　　　　　　　　　　　　　　　　　　　　The Kanto Koshin region, where the rainy season began in August for the first time in 13 years. On August 1, when the blue sky spread and the maximum temperature was 31.8 ° C, a midsummer day, many insects, such as Aosji Ageha and honeybees, are coming in search of flower nectar.