7. Framed Vintage Botanical Cyanotype Prints

Deep Prussian blue sun-prints offer an elegant alternative to conventional botanical artwork.

  • Introduction: Cyanotype is an early photographic printing process that produces deep cyan-blue silhouettes. When used to capture modern botanical specimens, these prints provide a timeless, artisanal balance between history and contemporary design.
  • What This Idea Means: The striking Prussian blue pigment serves as a vibrant accent against neutral bathroom palettes. It pairs naturally with clean white tiles, warm oak vanities, and unlacquered brass hardware.
  • How to Make It:
    1. In subdued light, coat 300 gsm hot-pressed watercolor paper with a standard cyanotype sensitizer solution (potassium ferricyanide and ferric ammonium citrate).
    2. Allow the sensitized paper to dry thoroughly in a dark room.
    3. Arrange pressed botanical specimens (e.g., eucalyptus stems, monstera leaves, or wild ferns) over the paper.
    4. Secure under a heavy pane of glass and expose to direct midday sunlight for 5 to 15 minutes.
    5. Wash the print in running cold water until the runoff is clear, then immerse in a diluted water bath with a dash of hydrogen peroxide to instantly oxidize the blue to its deepest tone.
    6. Let dry flat, then frame within double-pane glass floating frames.
  • Tips and Variations:
    • Variation 1: Tone the prints in green tea or black coffee baths after rinsing to shift the cyan blue to sepia, olive, or charcoal-black.
    • Variation 2: Frame a series of four matching square prints in a neat 2×2 grid to balance tall ceilings.
    • Paper Care: Use 100% cotton rag paper to prevent warping when the print is exposed to ambient bathroom humidity.