We had one on a northish facing fence and it flowered OK. It was outside the dining room window and when the house light shone on it at night the catkins looked fantastic. It did get a bit of sun but certainly not all day.

My garrya is growing against an east facing wall and has been growing there very happily for nearly 20 years. It gets some early morning sun but that is all.

In its native American West Coast habitat, it is usually found as an understory plant among Torrey pines or Monterey cypress. From Portland, Oregon northwards, it can be found in full sun, but still prefers to hug the tree line.

Thank you. I suppose it's okay to move now. It didn't have catkins on this winter. The leader is about 30 ins tall with some new growth at the base. Should I nip out the leader as I am planting against a wall and training it in a fan shape, or at least that's the idea.

Its too young to flower yet. I'd leave the leader to get taller another season before nipping it out if you want a fan. As you only bought it last year you should get away with moving it if you do it as soon as the weather permits. Plant it at least a foot from the base of the wall and make sure the soil is good and not full of builders rubble.

An alternative to training it as a fan is an espalier where the branches are trained horizontally. This will show the flowers off better. Although this method is more usual for fruit trees, there is no reason why it can't be applied to ornamentals as well.