Posted: 23/07/2015 at 14:05
I agree that the first looks like a dried out hydrangea. Looks like it's hungry and thirsty. The soil around it looks depleted of any nutrients. I'd hoe around it, being careful not to hit the plant, loosen up the soil and give it an enormous soak. Maybe dig in some bagged ready manure (can easily buy small bags from DIY centres who sell plants) to mix with that soil.
The second group of three look lovely and also in need of a soak. The soil looks walked on. I'd loosen it up as well, maybe get some organic matter carefully dug in round about them and give the area a really good soaking.
I think these plants could perk up - even the hydrangea looking ones, if you keep an eye out for them and make that soil less caked, firm and depleted.