Bonsai trees have a great history to them. Although most people think a bonsai tree is a specific type of tree, in all reality, the word "bonsai" quite literally means "tree in a pot. To plant a bonsai tree from seeds, you will need: bonsai tree seeds, a peat pellet, paper towels, a sealable plastic bag, small pellet tray, a bonsai pot, bonsai soil, a larger tray and water. The seeds need to germinate before potting the seeds. This process generally takes nine days.