Very interesting. I had no idea the plants sprouted from a leaf like that. How long did it take?

Not every plant can propagate via leaves. Some are easier than others, I imagine, though I only have experience with Jade.

Jade leaves (Crassula ovata) usually put out roots in a few weeks. Plantlets emerge a month or so after. The one in the bottom left is probably 8 months old now. All of it came from a single leaf. Here it is back in early November.

The are growing well - and look nice in pots you chose. (I usually remove original leave only after it totally dried up, until then it helps to 'feed' plantlet and also anchors it).

Many succulents will grow from leaves, some better than others - see Sedum morganianum (burros tail) that is extremely easy -

No matter how many years go by, or how many leaf cuttings I've done, this always fascinates me. They look great.

Looks like a couple of the variegated leaves reverted back to green whereas that top left one is very interesting!

Rina, thanks for noticing the pots, I find nice pots greatly increase my enjoyment of the plants within, can't really explain why, I put much less effort into choosing clothes to purchase/wear, for example.

Grace, yes, most variegated jade leaves revert (based on reports here I've read), but, most is not all :) We will see, I have hopes for them to grow enough to tell this summer.