I just had my Dr. Seuss repotted, and he doesn’t look so great. I chopped back all his dead hair, he was quite lush before, but had out grown his pot. He’s about 5.5 feet tall from base of trunk. We potted him in a sandy mix of soil. He has gotten all this new growth, and the flowers since he was potted. I’m not sure how much water he needs, in old pot he was doing good with twice a week. Also, do you know his technical name? Can’t seem to find anything about him online.
Also, he’s getting a couple extra hours of sun each day in the new location. More afternoon sun than before.
It is a Coreopsis gigantea. It’s a California native from the Channel Islands and the coastal cliffs of SoCal, so it is a winter grower and goes dormant in the summer, often loosing most of it’s leaves. In your large pot I would recommend watering well once every week or two and letting it dry out well before re-watering. Being a summer dormant plant too much water in the summer can cause rot and disease issues. It should perk up and take off this fall and look great again by Thanksgiving.