Your daughter must want a very large thick hedge to take over the garden eventually? Personally other than cheapness I can't think of a good reason to plant laurel when there are so many other beautiful hedging plants. Many of which flower, bear colourful fruit/berries, are evergreen or display variagated or seasonally colour change foliage. Why not give up on the laurel - test the soil, look at some other local hedges that are attractive, growing well & then choose something pretty? Just a suggestion - no offence ment.