I would have to say it really depended on the landscaper....
I know a few and have offered some Barberries to them and all have refused, I had 12 huge bushes I wanted taken out of my mother landscaped bed, for them to come and take them out and resell them, but all said no because first off, they have to usually have all the same sized
plants, 12
plants, 4 or 5 different shapes, and they'd have to guarentee them and if they can't go back to the original place they bought them from to get new one's because those didn't live, they won't do it...Like if they talked a client into getting one of the bigger ones, and say it would have been worth $45.oo, and then they didn't live, he'd have to go to another nursery and buy more to replace them!!!
And same for a few of the nursery owners I know...
They don't want to have to guarantee them...
Which I understand.....for the guarenteeing part..
Even if I give them something free, if it doesn't live, they have to "out of pocket" to replace it.
Where as the place they would have purchased it, would have guaranteed it and they wouldn't be in the "hole" so to speak!
Check around to your individual nurseries/landscapers and see what they have to say..
Weezie