"Martin" wrote in message
...

This site gives 20 cm between each plant
http://www.hedgesdirect.co.uk/acatal...6hQwo drnQKXA
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Martin


RHS advice is:



Planting
Planting distances vary from 30-60cm (1-2ft), depending on the plants'
vigor. For hedges thicker than 90cm (3ft) plant a staggered double row 45cm
(18in) apart, with plants 90cm (3ft) apart.



pk