This is such a good topic, SantasHelper!!!!!
Lovely people, from all over the world, sharing how they decorate for spring and summer!! I love it!
I'll do summer first. It is really hot, and really humid here in the summer. Although we have central air conditioning, we try to do all the old fashioned ways of dealing with summer heat. We keep the curtains closed during the day. We have also let lots of trees grow up -- on our property, and nearby. So there is a fair amount of shade. So it is rather dim inside during the day. This is a relief -- because it is SO HOT and BRIGHT outside. Our cable channel has dozens of all music stations, and we keep soothing instrumental music playing. Maybe light classical. We try to keep things really uncluttered inside -- especially during the summer. I try to cook only in the early morning, before 7:00 am.
Outside - is as much color as I can manage. We have lived in this house for a long, long time. I have crammed as many perennial plants in as I can, over the years. I supplement with many, many flats of impatients. (I try to buy them for $10 a flat at the supermarket or big box stores. I support the independent nurseries by buying perennials not carried by the cheaper places.) Of course, impatients are great for shade. They come in lots of colors now. I use almost all the colors. And I DO fertilize them so they grow really big by fall. I don't plant anything after June 1st -- it is just too hot!!
We entertain outside during the summer -- just as informally as possible. Sitting on the furniture that is out there all year and just having drinks and sandwiches or pizza.
Spring decorating is very simple. There is a spring wreath on the door -- purchased at the 90% off sale at Pier One. And a vase of fresh flowers on the dining room table. Right now, it is daffadils in various colors. That is all. And my spring decorating efforts involve trying to declutter and clear things out, and clean. So that summer is more tolerable.