Quote:
Originally Posted by cincinnana
Deterioration.
You will notice much happening as a leaf gets older.
Water repellency diminishes leading to decay and mold growth to name a few.
Wait till the days get even shorter and the morning dews get heavier.
Then it becomes this.. 
Normal for this type of plant......but unsightly.
Me.... I do some trimming.
. 
Dead leaf removal
by
Hostafarian,
on Flickr |
That's a ton of different leaves of all colors, shapes and sizes!!
Yeah I know older leaves deteriorate and I trim them back too but it's only happening to the ones in the ground in full sun, not my potted plants in the shade.
But you did mention something... morning dew
The ones in the ground have a ton of morning dew everyday so that might be it