Shokubutsu Mahou de Kimama ni Gardening Life: Haku to Seirei-san-tachi no Shokubutsuen

“The blood of my former life as a pseudo-gardener is boiling with excitement!!” Haku, who has faint memories of a past life since birth, receives a special skill — Plant Magic — on his fifth birthday. With this newfound power, his cheerful and carefree gardening life begins!

https://www.cmoa.jp/title/350538/