Ok, here's a little insight into native plant purchasing.
Native plants are wild. Some of the hybrids have had some of the wild breed out of them and are not nearly as tough. So something with a species name is usually tougher than one without. In other words Salvia mellifera repens is more drought tolerant the Salvia 'Dara Choice', but 'Dara's Choice is more garden tolerant. So next to a lawn, 'Dara's Choice', on dry slope, Salvia mellifera repens.
The nursery should be growing them as they want to be planted out, sun loving plants in sun, shade plants in shade. A plant grown in 70% usually fails when planted in full sun. Sometimes they 'melt', sometimes they just die.