Illustrated House Plants 2026 Wall Calendar Marble City Press - Enjoy a year of botanical inspiration with our 2026 Illustrated Houseplants calendar. This calendar’s gorgeous watercolor illustrations, timeless style, and calming palette will look great on your wall, and blend with your own ‘urban jungle,’ whether your space is filled with plants or not! We included each plant’s common or scientific name, as well as major U.S. and Canadian holidays, important observances of world religions, and lunar phases. Whether you’re a proud plant parent or simply love serene botanical art, we know that you will enjoy counting the days of 2026 with Illustrated Houseplants.