The trouble with the word 'compost' is its non specific, but I don't think you mean potting compost. Therefore, on the assumption you're planting your hedge in the ground, dig over the area and incorporate some humus rich material - garden compost, or well rotted animal manure compost - you can buy the latter at the garden centre.

To be honest, would you really need anything ? handfull of growmore per plant should usually suffice with Laurel

Possibly not, Badfish, specially if the soil to be planted is in good nick, but otherwise it's always a good idea to dig over and improve the soil before planting something permanent and long term such as a hedge, it's the only time you'll ever do it. Growmore only feeds the plant, does nowt for the soil, and the soil is more important for the plant long term.

Hi, I wouldn't be planting a laurel hedge in the first place! there are many far better choices for a hedge, Derek.

My first thought too, Derek. They grow into such monsters!

Hi Feverfew, don't they just, turn your back for 5 minutes, and they're 10 ft tall, lol, Derek.