The kanji 栽 primarily conveys the meaning of planting or cultivating, specifically related to plants and crops. It suggests the act of setting a plant into the ground to grow, or the act of cultivating it.

・On-yomi (音読み): サイ ・Kun-yomi (訓読み): う-える (u-eru)

⚫︎ 栽培 Translation: cultivation; growing ⚫︎ 栽植 Translation: planting; cultivation ⚫︎ 盆栽 Translation: bonsai; potted plant

The kanji 栽 is a phono-semantic compound (形声文字, けいせいいもじ). The semantic component is 木 (ki), meaning "tree" or "wood," indicating its relationship to plants. The phonetic component is 哉 (sai), which is used here to convey the sound. The combination of these two elements suggests the act of planting or cultivating trees and other plants. Historically, this character evolved from earlier forms that visually depicted the action of planting a tree.