Topiary-trained bay are trimmed with secateurs during summer to encourage a dense habit and to maintain a balanced shape. … Shrubs can be trimmed into shape by simply cutting back to a lower leaf or bud in spring or summer.
How do you train a standard bay tree?
Put in a good strong stake and tie the branch to it in several places, to keep it straight and upright. As it grows, pinch out or rub off any buds which try to grow on the stem, and only allow a tuft of foliage at the top. Keep it up for a year or two, and lo! and behold, you will have created a standard.
How do you prune a standard bay?
Bay Tree Pruning To keep the tree healthy trim back any new shoots and inward-facing buds. Bay trees tend to grow quickly, so may need additional pruning in summer to maintain a good shape. In summer, pinch back the tips of any stems that have grown too long, to limit vertical growth and encourage fruiting side shoots.