- More Fritillaries, April 11, 2010
- Sakura in Seattle, April 11, 2011
- Tree-Watching: Think Like a Tree on Arbor Day, April 11, 2012
- Tree-Watching: Recognizable Maple Leaves, April 11, 2012
- Seeing from the Corner of Your Eye, April 11, 2014
- Day Break Over Tulips, April 11, 2016