I’ve grown them at my beach home but not in a hot climate. For that I plant Vincas , they like sun & heat & are fairly drought tolerant at my Palm Springs area home, commonly planted as a summer annual there.
NO campanulas are going to be happy under those conditions. By nature, they are neither heat nor drought tolerant and while they will grow in full sun, partial shade is preferred unless you can provide consistent soil moisture. Growing them in a hot, dry and very sunny climate generally means they are very short lived.
Unless it something specifically blue in color, I'd look at lantana or a verbena for a similar growth habit.
I’ve grown them at my beach home but not in a hot climate. For that I plant Vincas , they like sun & heat & are fairly drought tolerant at my Palm Springs area home, commonly planted as a summer annual there.
NO campanulas are going to be happy under those conditions. By nature, they are neither heat nor drought tolerant and while they will grow in full sun, partial shade is preferred unless you can provide consistent soil moisture. Growing them in a hot, dry and very sunny climate generally means they are very short lived.
Unless it something specifically blue in color, I'd look at lantana or a verbena for a similar growth habit.