how big is the tree? 18cm sounds quite small for the pot.
Was the tree bare rooted or in a pot already?
But yes, you need to give it a good watering. to start with.
The muntjac get blamed for everything here. . But I love having them in residence
good decision mikzxr, far too many chemicals used on far too many gardens.
You could upload a photo so we can see the damage Ruth. Generally speaking when a conifer has gone brown it doesn't recover.
You could look at Viburnum davidii, that's quite small
Might be a Weigela, one of the yellow leaved cultivars
I don't know the rules
It'll tick over til you move.
Test the soil before you make an offer on the house