Goddess,

Tender new leaves can be damaged without any serious trauma. For instance, a lot of species are so tender, just touching them or a cat's tail swishing against them is enough to make them abort when they're just forming. Even a growth spurt that results in an emerging leaf brushing another vine or pushing against the window is enough to make them abort. Are ALL the leaves aborting, or just certain ones? I

One of the species I find particularly susceptible to leaf damage/drop is meliflua. It's interesting because the leaves become so firm and succulent once they're mature. But when they're fresh, new little leaf nubbins and until they're about 1/3 grown, I can practically breath on them and a few days later, the leaf is gone. I just went and looked at it and out of 5 new leaf nodes, 3 leaves are already gone and they're barely discernable as leaves at this point. I'll feel lucky if half the leaves develop.

So with those species I find are this tender, when they're actively growing, I try not to disturb them at all.

HTH...

Denise in Omaha

On this topic: do leaves regrow from the same node if they drop?

No, not in my experience.

Denise in Omaha