This is very normal, Rina! Growing conditions will affect leaf-size, but with time even those smaller leaves will grow. I have several 'Crosby's Compact' that show a range of leaves. And you're right, these have the brightest color consistently of any of my Jades.

Josh

Josh
Thank you, I already asked about them some time ago - sorry for repeating myself.
I am keeping them in same pots for now, since I like the look! Plant on left is older, potted in soil containing bark. Plant on the right is in mix of grit, Turface and perlite. Both are in 4" pots.

Here is a small plant that I found recently, I think I posted photo of it before. I wonder which one is it, the leaves are more blue-ish, and somehow curly:

Rina

Rina, I wonder if that is a curly jade, or a wavy jade :)

I would like to know, Margaret. I really don't know.

(Succulents, assorted. $2.99...that's the label)
Rina

If you look in C & S Gallery and find the 'Cabbage' thread, you'll see my Curly Bluebird. Maybe you can make a comparison then between it and your plant here.

Rina,

That last one you posted looks like C. arborescens spp. undulatifolia, as Marguerite mentioned, 'Wavy Jade'. I've seen several common names for these but that is what I call mine.

-Erica

Thank you Margaret and Erica, this is my first jade with different leaves - so for now filed under the name suggested :-)
Rina

I think that's a good decision, Rina.