Plant young, bare-root saplings in a staggered double row. Water well and give your new hedge a thick layer of mulch. Prune your evergreen hedges as soon as they start growing a lot.
As the New Year brings a fresh beginning, start as you mean to go on and keep on top of those jobs like weeding and pruning. You can also start sowing tomatoes, chillies and onions seeds indoors for planting out later.