May, Jun, Jul, Aug
Use secateurs, scissors or single-handed shears to cut young topiary or intricate forms. Cut back the young current season's shoots (which are a paler green) when they have reached 8-10cm long. Cut back to two leaves from the base of the new shoot. Avoid cutting into the previous year's older growth, which will be a darker green.
Trim lightly until the basic form is clearly visible - it's easier to trim again rather than cut drastically, ruining the shape. Thicker stems or any parts of the plant that need careful shaping, such as the top of this spiral, should be cut with sharp secateurs.