new growth is often lighter colored. it should darken over time

Thanks, Sans. I know my new growths come in lighter, but these two are big enough to be "grown," no? That's what was concerning me....I expect colors to have developed by this height. Perhaps I was mistaken!

Yes just looks like healthy vigorous new growth! Good growing!

They do look good, I believe the wider leaf growth is due to lower light conditions than where it was propagated. But I like the wide blades better anyway. If you opened those blinds a little to be sure as much sun light got to them, they'd probably color up and grow faster too.

interesting point on wider leaf, I'll have to look into that theory.

Wider leaf = it either needs more light or it needs to transpire more water than it should? Maybe even cooler temperatures could play a role?

These are all just hypotheses. It seems like that's how it would go....but I could be totally wrong.

anyone have any studies on it? It's probably not something that's well documented.

also, I could be wrong, but it looks like both windows have something obscuring the sun.

Light would make sense. :-/

My old house was all blazing sun east and west with very few N/S windows. My new house is mostly N and S, and the E/W rooms don't really get seen by me as they're the formal dining room and bedrooms that I don't use. So I've split up most of the plants between S and N, and the Sans are all in the N room. While these technically have a W windows, I also have 10 maples in a row that block the western sun outside.

Really thought it would be bright enough for my Sans and ZZ plants. :-/

It should be plenty bright enough, especially if you angle your blinds instead of keeping them parallel to the ground. The way they are now, minimal light is actually getting into the plants. Oh, you're gonna love em growing this way, don't worry. Just be sure to let it dry before watering again (you know already) but they'll be using less water since there is less sun.

Looks like plenty of light, I have some that get much less. Regardless of size, I still favor the explanation that it is just a young leaf.

Lati, good point. I didn't think of that but if I point the blinds down -- the rest of the plants in that room wil go darker. Man, I really need to just get skylights put in all over Lol.

Lol, I guess the blinds don't open all the way? I finally just gave up and open my blinds all the way in the morning and close them at night. Normally, it's so bright during the day and darker in the house so people cant see into the windows, it just turns every window into a mirror from the outside.

also, I've noticed when I angle my blinds slightly down, the whole room gets brighter, not just the window.

Light only travels in straight lines, so if the sun is coming down from the sky and you have those slats the way they are, most of the actual light from the sun is stopped about half way into the blinds; however, angled down, it allows more actual sunlight into the whole room since it's more in harmony with the direction the sun's rays are coming from.

lol, not sure if you've done much with it, but you should experiment and maybe even try a light meter to see if we are actually worrying over nothing lol. I've heard they have an app for that on smartphones but can't speak to the accuracy of those apps.

They're plantation shutters. It's a huge upgrade money-wise, and absolutely a nightmare when incomes to plants. LOL they're panels, so it isn't like you have lift them up and out of the way....I can can open the, up but then I have enormous shutter panels that in this corner, doesn't fold back to the wall because of each other.

i used to love the look of shutters before I had plants. I have no worries about anyone looking in and live with the slat opened, but I can't open them the way you're talking about! It drives me mad.

Turning them down definitely puts the sun on the plants. But it also most certainly darkens the rest of the room that gets ambient light from these windows.

I think those larger leaves are just the plant doing well, building up reserves and growing larger. Sans without enough light are a paler green with less obvious cross banding and the leaves are usually thinner

Can you take a picture oor just explain what that thing is in front of your middle sans there? With the little coral flowers in pots in a row, what IS that?

LOL, Lati!

Sorry, I am no longer getting notifications from Houzz at all so am just seeing this. That coral flower thing is a picture frame with a photo of my daughter. :-) I have twin girls so I had two of these (people always gift two of the same thing until they're 8 or so, LOL) but one frame broke two of the pots on top so....it's in pot heaven.

Hahaha.

Yesh, love them beauties. Good plants! Healthy! I failed with a motherinlaw's toungue plant.. v_v it's gone nao.. long while ago.. few years I think. anyway cheers, hope ya figure it out.