Posted: 26/06/2014 at 17:44
You probably need to plant young, small specimens so that they can establish well and are not so buffeted by the wind whilst getting their roots set down.
Re your list
Ceanothus like to be relatively sheltered so I wouldn't recommend it.
The others ideally like full sun so it depends on whether your height compensates for the NE aspect? if a bit too shaded that combined with the wind may mean they don't thrive. I think the Buddleja and spirea probably would be safer bets that the weigelia.
Some suggestions - these are all plants that cope with coastal or exposed positions so should tolerant wind and will be ok with the aspect
Ribes sanguineum Edward VII
Viburnum opulus 'Xanthocarpum' or V.tinu 'Eve Price'
Euonymus europaeus 'Red Cascade'
The hardy fucshias like magellanica or Riccartonii should also be ok, esp. if planted small say 1tr max so they can establish before too much buffeting.