Answer:
潘 HAN, BON, shiromizu, uzumaki - a surname, spiral
溥 FU, amane(shi), hiro(i) - wide, expansive
牙 GE, GA, kiba - fang, tooth
可 KA - good, possible, approval
澡 SOU, ara(u), susu(gu) - wash, cleanse
Adding the "flower" radical (艹 kusakanmuri) makes them all into different characters!
藩 HAN - feudal clan, lord
薄 HAKU, usu(i), usu(ragu), usu(reru), usu(maru), usu(meru) - thin, weak, fade, dilute
芽 GA, me - sprout, bud
苛 KA, kara(i), kibi(shii) - difficult, harsh
藻 SOU, mo - water plant