What's the name of the groundcover? It looks good to me. The foliage is a nice healthy green. The only thing you have to do is cut off the finished flower clusters. This plant is probably done blooming for the season. Just make sure you are watering deeply as they are new plants.

Jen

A gardner that left town installed them and I forgot the name of the plants.
I didn't know I had to manually cut off the old flowers.
I see the same type of groundcover still blooming brightly on other neighborhoods, so I thought this should still look vibrant too.
It is in the full sun part of the day until afternoon when the shadow of the house puts it in the shade.
Maybe it needs full sun all day long to keep blooming?

There are several reasons for your shorter bloom period. The first year in the roots are getting established, and the blooms probably will be less than other older plantings. Most sun loving plants (tomatoes/roses) need 4-6 hours to do well, and it sounds like you are getting that. You don't have to deadhead the old flowers, it just makes them look nicer. Another reason might be that other similar but different varieties may have a longer flowering period, and that is what you are seeing around town.

Give them a year to get established, some good compost, and then re-evaluate them.

Most plants do better if you dead head them (pinch off the old blooms)