Advertisement @schmiggle and you other botanically inclined. This temperature zone, from temperate into sub tropical is undergoing a subtle seasonal change. In the past it has had the four basic seasons with autumn sort of crowded in between winter and the hot season. IE, November into early March-winter. Late March into July-summer, July to the end of October-spring (rainy season). We are losing the winter season. This year looks like the alteration is here to stay. Where we used to have a cold snap at the beginning of November, day and night time temperatures dropped 10-15 F, the mild rainy season is now extending into or even through December well into January. The most extreme cold time of the year around January 15th is averaging 10 F higher than normal going by the almanac. I would like to observe what obvious (visual) effects this shift is having on the perennials and the (mostly deciduous) forests. It's like a major shift. A chunk of the planet suddenly got moved from semi temperate to the sub tropical-tropical. So what should I be looking at? Watching for? My observations are general. 3-4 hours each day out on my bike observing the flora.