Digital IR @ Mission Santa Barbara.  I saw these four blooming Century Plants and though they would make a nice IR Study.  Now that they have bloomed, they will die.  But look at the image on the left (below), they already have some baby plants started.  I’d estimate about 10 years old from the size.  So it will be a while before they bloom.  We won’t be here to see it.

Below:  The same perspective in natural color.