Перевести мама сажает розы: с 12 часов,обычно весной,сейчас(3 разных предложений) она уже посадила розу

Mom has been planting roses since 12 o'clock. Mom usually plants roses in spring. By now she has already planted a rose.

Mother plants roses. 12 hours, usually, spring. she had already plant rouse.
Вроде так...