Buy the 2015 Old Farmer's Almanac!
Yes, you can preserve theYes, you can preserve the sunflowers using silica gel crystals. They should be available (with step-by-step instructions) at any craft store.

2015 Garden Calendar2015 Weather Watcher's Calendar2015 Recipes Calendar2015 Engagement Calendar 2015 Everyday Calendar2015 Country CalendarNew Year Cross StitchLobster Rope Doormats