You can transplant a propagated echeveria clipping to make more succulent plants in your garden in the same way you would transplant the propagated clippings from other succulents. Let the cutting develop a callous, and then plant it.
Getting the Clipping Ready
First you take your cutting, then allow it to dry for a while, put it in the soil, and wait for it to sprout roots. When it does, it’s ready to be taken to another pot and cultivated as a baby echeveria plant, which requires minimal care but does need full sun for at least 4 hours a day.
Mist, Don't Water
Don’t water your propagated clipping. Instead, use a spray bottle and mist the very surface of the soil a little, and that’s plenty of water for your echeveria plant. It doesn’t need anything more because it is a desert succulent and, as a result, is used to having little to no water.
In the new home in your arid garden, the echeveria clipping should have full sun like it does in its natural environment. This will give it the chance to make and store its own food and nutrients to survive.
Echeverias are pretty hardy plants, and you shouldn’t have much of a problem transplanting and caring for them after they’ve been propagated.