Where I live in California we have fiveish seasons which seems to have wandered all over the calendar recently....
Winter.... rainy season... Good time to plant trees and grow cool weather crops like lettuce, peas and cole crops. Use Reemay during frosty times which vary each year, this last winter we hardly had any frost. Five winters ago we had citrus killing frosts. Everything is green with grass. A lot of citrus fruit ripen in winter.
Spring .....rampant weed season, wildflowers blooming... Good time to plant a lot of other stuff. We had a lot of rain through the spring... usually it stops around April, but we had big rain through June this year. Just added to the weed load. Best time for strawberries.
summer.... Where I live it's foggy cool mornings and hot afternoons with lots of wind... Not good for planting anything because of aridity. Rain is extremely rare here during the summer. Or if you live in San Francisco, it's the coldest winter you ever had is summer in San Francisco (Mark Twain). Rampant harvests of berries, stonefruit, corn, beans, tomatoes and tons of zuchini. Time to do some summer pruning of fruit trees. Grasslands go brown, wild mustard blooms.
Indian Summer.... about three weeks in September where it's hot hot hot.... Or if you live in San Francisco, it's the two weeks in October where the temps rise to the 80's and there's no bone chilling fog.
Fall.... can be lazy dreamy days. Time to harvest apples and pears.