This is dependent on the tree species but in most cases the best time of year to undertake tree work is from late-Autumn through to Winter, when the tree is dormant, and it is best to avoid Spring time and early-Autumn. The reason is that in Spring time the tree is actively growing and any tree pruning can be detrimental to the growth of the tree. Likewise, in early-Autumn the tree is pulling all the nutrients that it needs from the leaves and any tree work can put additional stress on the tree due to loss of nutrients.
There are a few exceptions to this general rule such as Walnut trees that should be pruned mid-Summer to early-Autumn as the tree is prone to bleeding sap through the open wounds. The other exception is if the tree, or a branch, is hazardous such as dead or diseased, as the safety of the surrounding public or buildings would take priority and, in most cases, any minor tree work or the removal of one branch, is not likely to have a detrimental affect on the whole tree.
If a tree or hedges is being removed, the time of year is mostly unaffected but one consideration would be bird nesting season. All species of nesting bird are protected all year round; however, they commonly nest between March to July. If there are no actively nesting birds within a tree then we can continue with the tree removal, however if there was a nesting bird within a tree, we would need to postpone the works until the birds had fledged the nest. In most broad-leaved species, with sparse canopies, it is easy to undertake a pre-work inspection for any nesting birds. However, with some evergreen species with dense canopies, such as Conifers, it is very difficult so we would look to schedule these works outside of bird nesting season, if possible.
In regards to hedges, it is dependent on how many times a year you plan to have the hedge cut and where the hedge is located. If cutting the hedge once per year then we would recommend cutting it between September to November. This falls outside of bird nesting season and is before the winter frosts. However, if you plan to cut you hedges twice per year then an earlier cut in June or July is recommended. In some circumstances, where hedges are close to paths or roads, they may require an earlier cut in June/ July to ensure that they are not impeding onto the paths or road.
Following a site visit to assess the extent of your works, and to provide you with a quote, our estimator will be able to advise and make recommendations on the best time of year to undertake your works.