The weather (cold or hot, wet or dry) has never bothered my sturdy ground cover before – I don’t know name but like the ones at Disney where they trim to look like Disney characters – now, it’s all dry underneath and shedding? Is something wrong? I treated it with some osmocote but has only made it grow well in past?!
I have no idea what plant you might have but we just hard a very cold (coldest February since 1934) ant it was rough on a lot of plants. Then we hit the dry spell that just now id ending (I hope). Feed as you usually do and you could even use some Mir-Acid (I’m assuming it is an evergreen plant) diluted as per the direction and wash that over the plant as a foliar feed. Do that twice a week or so apart but stop in hot weather. That should help them recover.