Wendy B G wrote:

They're potted and back inside and looking better already.

Glad to hear it.

I agree with everyone else that it is too early to put out your aloe, because
of the possibility of cold temperatures in your Zone 6 location.

But, your initial observation of leaf bleaching happened on a warm day. The
cause may have been sunburn.

Aloe plants sunburn easily, when they are brought outside after a prolonged
stay in the relatively dark indoors.

I keep my large, 10-year-old aloe in a sun porch, and put it into a
partially-shaded location in the spring. Despite this, the skin usually
bleaches, then turns brownish, before returning to its usual happy green after
a couple of weeks.

Wendy
Wilmington, DE (Zone 7, aloe still indoors)

Thanks Wendy - that sounds like exactly what happened. They're back to
their normal color now. Where I had them last year is actually pretty
shaded a good deal of the day, but not yet as the leaves aren't out on
the elms yet.

Kate (the aloes can stay in - I'm planting some seeds today!)