Carnations are one of the trickier flowers to press because of their thick, layered petals, but with the right approach you can get beautiful flat results. The key is managing all that moisture: carnations hold more water than thinner flowers, so preparation and method choice matter more than usual. Most pressing methods take two to four weeks, though a microwave can cut that down to minutes.
Why Carnations Need Extra Attention
Unlike daisies or pansies, which lie relatively flat on their own, carnations have dozens of ruffled petals bunched tightly together. That dense structure traps moisture in the center, which slows drying and increases the risk of browning or mold. The calyx (the thick green base holding all the petals) adds even more bulk. You’ll either need to slice it, remove it, or take the flower apart entirely to get a clean press.
Picking and Preparing the Flower
Start with carnations that are fully bloomed but not wilting. Flowers past their peak are already losing pigment, and buds that haven’t opened won’t press into a recognizable shape. Fresh carnations retain more moisture and color, which sounds counterintuitive, but that moisture is what keeps the pigment intact long enough for the pressing process to lock it in.
Before pressing, trim the stem to about half an inch below the calyx. If you’re pressing the flower whole, slice the calyx in half vertically with a sharp blade so it lies flatter. Gently fan the petals outward so they spread into a single layer as much as possible. Remove any petals that are bruised or damaged, since imperfections darken during pressing.
The Book Method
This is the simplest approach and works well if you’re not in a hurry. Place a sheet of blotting paper or plain white printer paper inside a heavy book, lay your prepared carnation face-down on it, then cover with another sheet of paper. Close the book and stack additional weight on top: more books, a brick, or anything heavy and flat.
Leave the carnation for two to four weeks. The timeline depends on how thick the flower is and how humid your room gets. Check progress after two weeks by carefully peeling back the paper. The flower is done when every petal feels papery and completely dry to the touch, with no cool or damp spots in the center. If it still feels slightly soft, replace the paper with a fresh sheet and press for another week.
Use blotting paper rather than parchment paper. Parchment traps moisture against the petals, which leads to browning and mold. Blotting paper wicks moisture away quickly, and that speed is what preserves color.
Using a Flower Press
A dedicated flower press with wooden boards and wing nuts gives you more even pressure than a book. Layer the carnation between sheets of blotting paper and cardboard, tighten the bolts firmly but not so much that you crush the petals, and store the press in a warm, dry room. Expect two to three weeks for a full dry, depending on petal thickness and humidity. The same rules apply: check at two weeks, swap the paper if it’s damp, and wait until the petals feel completely papery.
The Microwave Shortcut
If you own or can buy a microwave flower press (two small ceramic tiles with straps, or a purpose-built kit), this method takes minutes instead of weeks. Place the carnation between layers of blotting paper inside the press, then microwave at 50% power in 30-second intervals. Between each burst, open the press and let the flower cool for a few seconds so you can check progress. Most carnations take between one and two minutes total, though especially thick blooms may need a bit longer.
You’ll know it’s done when the petals feel papery and aren’t sticky or cool to the touch. The advantage here is speed: faster moisture removal means less oxidation, which helps colors stay closer to the original. The downside is that it’s easy to overdo it. If you skip the cooling checks and run the microwave too long, petals can scorch or become brittle and crumbly.
Pressing With a Household Iron
An iron works in a pinch if you don’t have a press. Set it to the lowest heat with no steam. Lay the carnation between two sheets of parchment paper on a hard, heat-safe surface, then press the iron down gently for a few seconds at a time. Lift, let the flower cool, and repeat. The goal is to draw out moisture gradually without cooking the petals. This method requires patience and a light touch, since too much heat or pressure in one spot will brown the edges.
The Deconstruction Method for Thick Blooms
If your whole-flower presses keep coming out lumpy or unevenly dried, there’s a workaround that many pressed-flower artists use for carnations specifically. Instead of pressing the flower intact, you take it apart first.
Pull each petal from the calyx individually. Slice the green calyx in half so it presses flat on its own. Press all the petals and the calyx pieces separately using any of the methods above. Individual petals dry faster and more evenly because there’s no moisture trapped between layers. Once everything is dry, use a small dot of craft glue to reassemble the petals into a flower shape. A reference photo of the original carnation helps you rebuild a natural-looking bloom. The result is flatter and more uniform than pressing the whole flower, and it avoids the dark, mushy center that thick carnations sometimes develop.
Keeping Colors Vibrant
Color loss is the biggest frustration with pressed carnations, especially pinks and reds. The pigment responsible for those colors breaks down when exposed to light and oxygen, which is exactly what happens during a slow pressing process. Pink carnations often shift toward purple or brown. Red ones tend to darken into burgundy. White carnations can yellow or turn translucent.
A few things help. Press the flowers as soon as possible after cutting, since every hour of wilting degrades pigment. Use absorbent paper to pull moisture out quickly. Keep your press in a warm, dry spot rather than a damp basement or bathroom. Allow space between flowers so moisture can escape rather than pooling between them. Handle the blooms as little as possible, because finger oils and physical pressure cause bruising that darkens during drying.
Once your carnations are pressed, store them somewhere dark and dry. Displaying pressed flowers in direct sunlight accelerates fading dramatically. A frame with UV-protective glass extends the life of the color, but even then, some shift over months is normal. Deeper, more saturated colors at the start tend to hold up better than pale pastels.
What to Do With Pressed Carnations
Pressed carnations work well in framed botanical art, resin jewelry, greeting cards, bookmarks, and candle decoration. Because they’re larger than most pressed flowers, a single carnation can anchor a composition on its own. If you used the deconstruction method, you can arrange the petals in creative ways that don’t strictly mimic the original flower, layering them into new shapes or combining petals from different colored blooms.
For any project where the pressed flower will be exposed to air, sealing it with a thin coat of clear-drying craft sealant or laminating film helps prevent further moisture absorption and slows color fading. For resin projects, make sure the flower is bone-dry before embedding it, since any residual moisture will create bubbles or cloudiness in the cured resin.