I would annotate flowering plants that are flowering out-of-range, such as if you are in Northeast US and you see anything sans Hamamelis flowering in December. These could be indicative of plants flowering later due to climate change or other factors such as artificial light/heat.
Also, did you know that you can go on the annotation page and quickly annotate with shortcuts? For example, pressing “v” followed by “g”(remember vegetation-green) will automatically annotate the plant as “Green Leaves”. “p” followed by “l” will give you flowering(for plant-fLowering) and “p” followed by “r” will give you fruiting(for plant-fRuiting).
Hope this helps!