Yes all hydrangeas are little lime punch. The corner and side bloomed a few weeks after the first two.

It looks great...in a pot:) I try not to compare these little hydrangeas grown in a pot vs in the ground. I can always keep anything in a pot looking better where I can control moisture, sunlight, wind, etc.

Since fall planting season arrived for me in zone 6...I did move the Little Hotties out of their prime spot by the front porch entry way to an area in the backyard landscape. I'll let them do their thing for a few years back there...see if they can prove themselves.

Maybe they are not getting as much water as you think? Since I am not there, I can't tell what rainfall, irrigation practices or soil conditions are or if extended high temperatures have been present but both the leaves and flowers show a very clear dryness or lack of water.

Test the soil moisture at a depth of 4 inches frequently when above 85F or if in a drought. As soon as it is dry, irrigate the soil directly (not the leaves nor the blooms) and deeply. Deeply means the soil should feel moist at a depth of about 8 inches after you irrigate and the water percolates down. If you irrigate and the soil is not moist at a depth of around 8 inches then you did not irrigate sufficiently. Maintain 3-4" or organic mulch up to the drip line so you can always keep the soil at a depth of 4" evenly moist.