Make botanical cyanotype Christmas cards: from proof to envelope

A pale branch against deep blue needs little decoration to become a Christmas card. Cyanotype makes the image with light: a flat plant or opaque paper shape blocks exposure and leaves a lighter impression. Each arrangement can be slightly different without requiring a new drawing for every card.

This project makes a separate print, dries it completely and then mounts it on a card. That keeps the wet process away from the folded card base. Begin with one satisfactory proof before planning a batch. Winter light, paper and coating thickness make a fixed exposure time unreliable.

Illustration of a possible card composition, rather than a photograph of a material test performed by us.

1. Choose the card and envelope first

Choose a card base that fits the intended envelope. Place an untreated piece of print paper on it and check room for a border, greeting and fold. Keep the image panel clear of the fold. A separate print is easier to rinse than an already folded card, and the card base need not enter the water. Use the same outer dimensions for a series. Small differences in the direction of a leaf can remain part of the design rather than becoming errors you need to correct.

2. Gather suitable materials

You need cyanotype chemistry, suitable absorbent paper, a brush, mixing equipment, dry flat plants or opaque paper shapes, an appropriate contact arrangement, rinsing water and drying space. The Cyanotype Starter Kit contains powder chemistry for 200 ml of emulsion, ten watercolour sheets in different sizes, a foam brush, measuring cup, mixing tray, nitrile gloves and instructions. A UV lamp, negative and contact plate are not included. A refill suits someone who already has the working tools. Aquapad is one possible 300 gsm paper choice, not precoated cyanotype paper.

3. Arrange a simple winter composition

Choose a small, dry branch that lies as flat as possible. Thick woody parts can stand above the paper and produce softer edges. Add a paper star or circle if you like; intricate shapes are unnecessary. Arrange everything on untreated paper first and look at the empty space. Areas shielded from light remain lighter while the open background turns blue. Keep the greeting out of a crowded branch structure. A photograph of this dry arrangement helps you return the pieces to approximately the same position after coating.

4. Prepare a clean workspace and a thin coating

Separate dry paper and card bases from mixing and rinsing areas. Follow the labels and supplied instructions for preparation, protection and storage; avoid skin and eye contact and breathing powder. Do not use food or drinking utensils. A chemistry set is not automatically a children’s toy. Prepare the separate components as directed and mix the needed working solution shortly before coating. Work in subdued light, spread a thin even layer and let the paper dry fully in darkness. Wet patches and puddles make a proof harder to interpret.

5. Find the exposure with a test

Place the shapes on dry coated paper and establish appropriate stable contact without damaging plants or equipment. Use sunlight or a suitable UV setup according to the device instructions. Do not look directly into a UV source, and follow the specified eye and skin protection. Make a small exposure series and record conditions. Cloud, winter sun, contact materials and lamp distance can change the result. There is no universal number of minutes. Compare tests using the same paper, coating and setup; otherwise you will not know which change made the difference.

6. Rinse, then assess the dry result

Remove the shapes and rinse according to the instructions for your chemistry, using clean cool water until unexposed material has washed out and the water remains clear. Handle wet paper gently and avoid rubbing. Do not add bleach, cleaning products or other chemistry for this project. Let the print air-dry completely. The blue can change during drying and oxidation, so a wet print is not the final result. Bring card bases and envelopes back only after your hands and working surface are clean and dry.

7. Troubleshoot one variable at a time

This table helps investigate a cause; it does not diagnose every chemistry. Check your own kit instructions first when a result looks unusual. More chemistry or a thicker coating is not automatically the answer.

8. Mount a completely dry print

Fit the dry image to the card base and check that the fold stays clear. Test an adhesive or paper attachment on a spare piece before assembling every card. Use a method suited to both papers and let it dry according to its instructions. This is not a promise of archival performance. Add a name, year or short greeting where pressure and moisture will not damage the image. Check that the card sits flat and enters its envelope without bending. A front surface that feels dry is not a reason to stack a card whose other layers remain damp.

9. Plan a small batch with a print log

Suppose you want six cards. This is a hypothetical example, not a kit yield we have tested. Start with one proof, allow spare paper for a failed or repeated attempt and make the remaining prints after the dry result meets your intention. Record paper and size, mixing and coating method, light source and conditions, contact setup, exposure, rinse and dry result. Keep a small sample strip beside the notes. If the light changes, make a new check rather than automatically reusing the previous time.

10. Check the card before sending

• The image is fully dry and does not transfer during normal gentle handling.
• The print is secure, the fold works and the envelope closes without strain.
• The greeting is readable and the card base has no glue or water marks.
• Your test notes are kept for the next batch.

Prefer giving materials rather than making cards? Read our new creative Christmas gift guide. A card can also accompany a painted reusable gift bag. For each part, choose an achievable test and give drying as much attention as design.