signs trees need watering

[new gardener 1052]

signs trees need watering

good evening all... this may sound like a silly question to most of you. but what are the signs your tree needs watering?
beeng brand new to the gardening world myself I'm not too sure of the signs.(people have said watch for when the tree wilts but i don't know what wilting looks like)

many thanks in advance ng.

[fishpond]

What trees?
How big?
Are they in tubs or in the ground?
If in the ground, how long?

[BUFFS]

like any plant lacking water, it will wilt and you can see this from a distance as the leaves don't move "right", as said above what are the details?

[veggiechicken]

As this is a follow on from an earlier thread about the trees - I've merged them

[new gardener 1052]

Firstly thankyou veggie chicken, I have a victoria plum in the ground for about 4 weeks. A Cox's Orange Pippin in the ground about 4 weeks. A stella cherry tree in a 18" pot 1 week. A cherry sunburst in a 18" pot about 3 weeks. & 3 18" pots each with a blueberry bush all potted about 3 weeks ago.

I think all the trees are roughly about 2-3 years( thats what I was told when I bought them) all the trees stand about 1.5 metres high. I hope I have gave enough info now

Thanks everyone.

[jackarmy]

just a guess