The bad thing about drooping is it can mean too much water, or it can mean too little water. Perhaps get a moisture meter with a probe and test moisture down in the root zone. Sometimes new plants have top growth that is large relative to the root development, and when placed in the ground transpiration simply exceeds the plant's capacity to absorb water. In such a case, it is good to remove some of the top growth until the roots develop more and catch up. Some plants just can't handle late afternoon sun, and will droop regardless. In that case, move the plant so that it avoids the hot afternoon exposure. Of course, there is always the possibility that your plant just perks up after a few days, but with this plant, the problem seems to be persisting too long.
If the plant was mine, I would lift it. Would assess root condition. And would put it back into a container, giving the plant morning only sun until it perks back up. Then would try to find a better location before putting it back in the ground. Oh, would also trim off that flower or seed ball, as would have to be taking quite a bit of energy from such a young plant.
Eclectic gardening style, drawing from 45 years of interest and experience. Mostly plant in raised beds and containers primarily using intensive gardening techniques.