We've read opposing descriptions for the sun tolerance of Carnival Watermelon Coral Bells from one end of the spectrum (full shade) to the other (full sun). We live on the west side of Colorado Springs at the base of the foothills. The climate, as you know, is dry and very hot this time of year. We do have some shady areas in our back yard, but there are brief periods of times during the summer months that there is absolutely no shade available. These plants have shown some great resilience, but we'd like to give them the best chance to thrive. So, any recommendation would be appreciated. Thanks!