Posted: 12/01/2016 at 22:28
Let me guess, you potted them all in multipurpose compost? If you did then they are too wet. Plus they are on the floor so they won't be draining properly. Does the terrace get windy?
The other plant in the top picture looks like a magnolia. Really none of them are suitable for pot growing. You can pot grow rosemary, but they won't like MPC. The wisteria needs a deep good root run and will give up the ghost eventually.
The conifer has dieback, again it won't do well in MPC. The hydrangea isn't being nibbled it looks like scorch of some description. There are solutions to the rosemary and hydrangea, but I'd look for a different set of plants more suited to growing on pots as the best solution.