Spring to summer

Canopy growth continues during summer,fuelling photosynthesis by increasing exposure to sunlight. Meanwhile watervapour from transpiration cools the area while fruit ripen and the tree storesenergy for winter in the form of sugars and carbs.

Trees need to regulate their energy andresource usage over the summer months due to low levels of rainfall and soilmoisture.

Photosynthesis will slow during summer iftemperatures get too high, even stopping during the hottest periods. This isself-preservation as the tree otherwise loses its ability to functionefficiently. 

Pollution also tends to be more prevalentduring summer months, increasing the probability of disease or poisoning. 

A 2021 Geophysical Research Letters studyof northern hemisphere seasons (1952-2011) found that global warming haslengthened summer while shortening other seasons. At the current rate, winter2100 will last under two months while summer lasts almost six.