I guess we'll find out. I have some existing leaves that seem a little stressed. I think it is from the change in lighting, but there are babies coming up with some good color.
Here's some pics. You can see the algae looking brownish on the leaves and greenish on the gravel. I added the fine gravel last weekend. You can see the baby leaf on the first picture.
Wisteria with new leaves, but the older leaves are getting algae.
I forget the name of this one, but it has grown a few inches.