Container-grown ginkgo has many of the same needs as ginkgo grown in the ground, although some of its requirements differ. Choose a container with ample drainage holes. When repotting, use a container that is about twice the size of the ginkgo's original container. Ginkgo kept in a container needs regular watering, especially when actively growing. Water your ginkgo tree when the soil feels dry. Prune the ginkgo in winter, if desired.