MAY is when it’s time for major growth spurts so you will need to begin the feeding programme, once a week is the norm, except for newly re-potted trees, which will require none or negligible amounts as the new soil will have all the feed that is required. Follow the manufacturers’ instructions as it is safer to feed a weak solution more frequently than a strong dosage irregularly. Older or mature trees will probably not need feeding quite so often.
Start to shape your trees by pinching / cutting the new growth and training where necessary. You need to keep the top growth short otherwise the lower branches could be starved of feed, which you do not want to happen as you need to ensure that the lower branches are kept strong and healthy. Keep an eye on the upper branches so they do not over develop which will create shade over lower the branches as this could well cause problems later.
Reducing growth early on will help to ensure short internodes and encourage a fine growth of new branches. Spray for any bugs or mildew as necessary, not in strong sunlight though, it’s suggested to use a weaker solution than recommended as the leaves are very young and tender at this stage.
Still protect from strong winds and late frosts and the demand for water will increase considerably.