Lucky you!

It it looks to me, from pictures 2 and 4, like you have another leaf growing trapped inside the older leaf. If you look closely you should be able to see they open in different directions. Spikes on vadas do not emerge from the growing tip. If the newest leaf does not open at all, on the inward edge, or it is a spike, it means you will get no future growth from the top of the plant and will have to wait for a keiki to form.

@northern orchid....why do you say lucky you?

Meg..what terrible news. Have you ever had a leaf get stuck?? So sad

Yes, it has happened to one of mine before and your pictures look similar. Back then vandas were new to me and I thought it might be a spike. I have one now (I'm not sure, it may be the same plant 5 years later, grr) on which the top leaf is not closed but, is oddly folded and does not seem to be continuing to grow. However, it has also started two keikis this year. Give your plant some time and good growing conditions. That top leaf may still open or you may get keikis.

I've not had this happen on a vanda, but have dealt with it on other genera. When I see a stuck leaf, I give it several days, if there's no progress I try to help ( be warned, do this very carefully! ). I use a sharp thin bladed knife and carefully insert it Into the leaf that is binding the new growth. I slit the leaf down toward its base just an inch or so, depends on how badly the new growth is trapped. This has often worked for me. Good luck.

Thanks. I would rather not do this. I did it once with a cataleya and killed it :(

your vanda is screaming out for more moisture. When vandas close their leaves it indicates that it is trying to reduce moisture loss by reducing transpiration from the leaves. The plant's basic survival instinct is driven by trying to stay alive with limited resources, in this case "not enough water".. Root system is limited as well. If this was my plant, I would place in a wooden vanda basket and soak it twice daily for 15-20 minutes to improve watering. The wet basket will provide longer continued water availability and draw out more roots.