I think most succulents can be grown outdoors, as long as the conditions are right. Did you put them out into direct sunlight? Any time you move a plant from indoors to outdoors, you need to put them in shade, and then gradually move them to a sunnier location. They sunburn just like we do. Also, not all plants like full sun.

Thank you for your advice

I acclimate mine to the sun by putting them in full sun for an hour each day in spring, then after a week, 2 hours, and increase the time each week until they are up to the amount of hours they will be in full sun. Obviously this method requires a bit of plant moving and attention to time, but it works perfect for my situation bring that I don't have any good shady spots.

Joe

I don't know of any succulents that should only be grown indoors, but depending on where you live and what you're growing, it might be a necessity for part of the year. Where I live I can leave most everything outside all year. In cold climates you'll probably have to bring most things indoors for the winter, and in hot climates you might have to bring some inside in the summer.

Actually I lived through many New England winters, but I get your point. :-)