thanks, that yucca is faxoniana you can barely see the filaments on it, it was only planted last summer and had been in a pot for 3 years with little care while i was building new place. i think now that it's in the ground and growing better the new growth will resist the spots.
all the plants stay outside the only new one this year is a. jaws, the one by the house is agave americana protamericana 'blue steel', i've had it since 2006 at my old house it was more exposed.
pic of a americana prot. blue steel from old house (same plant)