I have some hen/chicks planted at the base of some boulders that edge a flagstone patio. They are basically in a sand/gravel mix, with whatever soil lodges itself in the cracks (certainly enough for many weeds to feel at home). They did fine last season with no particular care and threw off lots of babies. This year they seem rather parched and struggling. We have had an unusually dry June/July (I think we've had a total of less than an inch of rain for both months). What are their general watering/fertilizing requirements? Is full sun good or do they prefer some shade? It seems the ones with a bit of rock overhang are doing better than those in full blasting sun, or those may just be in a better line for the sprinkler. I have no idea what cultivars I might have, they came from the grocery store or from friends, so just a mish-mash of the more common forms I assume. They all rather look alike to me, with perhaps a bit of color change.