Establishing saplings rooted in water

[Umpteenthnamechange]

I have always wanted an elderflower tree - not the Black Lace one - but the common elder.

We bought our dream house and it seems every single person around had one - and we have managed to gatehr enough flowerd for cordial and some 6 bottles of wine this year (yay!)

But more long term, I would quite like my own elderflower tree. Randomly this spring I took a few cuttings and stuck them in a jar of water.

Well, it seems 2 have rooted. They have 4-6 white long roots each, and the leaves I had left on them are still lovely and green.

My question is what next? Surely they cannot just be left in the water forever! But will sticking them into ordinary compost not just shock them?

is there something particular I need to do to make them live and eventually establish?

RHS isn't much specific help, so hoping MN can help!

Pot them up in small pots. Make sure you keep them watered an put them in a reasonably sheltered spot.
They are quite tough and usually grow like weeds!

Thank you! So I shouldn't keep them indoors then? I rooted them in water on a sunny dull

Dull= sill

No they need to be outside now.