The Art & Science of Flower Pressing

# The Art & Science of
# Flower Pressing

### HEATSYNC LABS WORKSHOP

*From Garden to Gallery: Preserve Nature's Fleeting Beauty*

Sofia Penabaz-Wiley, Ph.D. | sofiapenabaz.com

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## Why Press Flowers?

### Scientific Herbaria

Document plant species, preserve traditional botanical knowledge, support research

### Arts & Crafts

Cards, bookmarks, framed art, jewelry, candles, home decor

### Culinary Uses

Decorate cakes, cookies, ice cubes, garnishes for elegant presentation

### Memory Preservation

Wedding bouquets, garden favorites, gifts from loved ones, travel mementos

### Education

Teach botany, connect with nature, mindful observation, journaling

### Local Flora Documentation

Record Arizona's unique desert wildflowers and native plants

*Herbarium specimens collected 200+ years ago are still used for research today*

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## Flower Anatomy: Know Your Parts

### Petals (Corolla)
Colorful structures that attract pollinators – Press best when thin

### Sepals (Calyx)
Green, leaf-like structures protecting the bud – Usually press well

### Stamens (Male Parts)
Filament + anther with pollen – Remove if too bulky

### Pistil (Female Parts)
Stigma, style, ovary – Central structure, may need to be thinned

### Stem & Leaves
Vascular tissue, support – Thick stems may need to be sliced

### Why this matters for pressing:

Understanding structure helps you know what to remove, flatten, or slice for best results

*Thick, fleshy parts hold more moisture and take longer to dry—plan accordingly*

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## The Science of Color: Why Flowers Fade

### Plant Pigments

| Pigment | Colors | Stability |
|---------|--------|-----------|
| Chlorophyll | Green | Breaks down quickly |
| Carotenoids | Yellow, orange, red | Relatively stable |
| Anthocyanins | Red, purple, blue | pH-sensitive, may shift |

### What Causes Color Loss?

- **Light Exposure** – UV rays break down pigment molecules
- **Oxidation** – Air exposure causes chemical reactions
- **Moisture** – Incomplete drying causes browning and mold

### Color Retention Guide

**Colors That Hold Well:**
Blue, purple, deep reds, yellows, oranges – Flowers with low moisture content

**Colors That Fade Quickly:**
White (turns ivory/brown), light pink, pale pastels – High-moisture flowers

*Different craft applications (resin vs. framed vs. laminated) affect long-term color retention*

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## Best Flowers for Pressing

### Excellent (Flat, thin petals)

- Pansies & violas
- Cosmos
- Daisies
- Buttercups
- Lavender
- Forget-me-nots
- Queen Anne's lace
- Ferns & leaves

*Low moisture, thin structure*

### Moderate (Need preparation)

- Roses (press petals separately)
- Zinnias (remove center)
- Sunflowers (petals only)
- Hydrangeas (individual florets)
- Carnations (separate layers)
- California poppies

*Disassemble bulky flowers first*

### Challenging (High failure rate)

- Orchids (fleshy, high moisture)
- Tulips (thick, watery petals)
- Lilies (bulky, prone to browning)
- Peonies (many layers)
- Succulents (very fleshy)
- Most cacti flowers

*Too much moisture, thick tissue*

*Always pick flowers on a dry day, after morning dew has evaporated*

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## Arizona & Desert Flowers to Press

*Many desert plants are surprisingly good for pressing—low moisture!*

### Native & Edible

- **Desert Chia** – Blue flowers, lovely pressed
- **Ocotillo** – Bright red flower spikes
- **Palo Verde** – Yellow flowers, edible!
- **Desert Ironwood** – Pink flowers
- **Wolfberry** – Small purple flowers
- **Desert Dandelion** – Yellow, flat
- **London Rocket** – Yellow mustard flowers

### Garden & Landscape

- **Lantana** – Colorful clusters
- **Bougainvillea** – Paper-thin bracts
- **Mexican Evening Primrose**
- **Globe Amaranth** – Holds color well
- **Nasturtiums** – Flat, edible!
- **Rosemary** – Tiny blue flowers
- **Lavender** – Fragrant, keeps scent

### Edible for Culinary

- **Borage** – Star-shaped, blue
- **Calendula** – Orange, healing
- **Pansies/Violas** – Classic choice
- **Herb flowers** – Basil, thyme, chives
- **Citrus blossoms** – Fragrant
- **Elderflower** – Delicate

**Only use pesticide-free flowers for food!**

*Never pick from protected lands – Avoid collecting endangered species*

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## How to Press Flowers: Step by Step

### Step 1: Harvest at the Right Time

- Pick on a dry day, after dew evaporates
- Choose fresh, just-opened blooms
- Avoid damaged or wilted flowers

### Step 2: Prepare the Flowers

- Gently pat dry if needed
- Trim thick stems
- Disassemble bulky flowers
- Remove excess material

### Step 3: Arrange in Press

- Place between absorbent paper (blotting, newspaper, coffee filters)
- Face up for flat look
- Don't overlap flowers

### Step 4: Apply Pressure & Wait

- Tighten press or add heavy books
- Store in cool, dry, dark place
- Wait 2–4 weeks until fully dry

### Pro Tips

- Change paper every 2-3 days for faster drying
- Use cotton pads for chunky centers
- Slice thick stems in half lengthwise
- More pressure = faster drying

### Common Mistakes

- Pressing wet flowers (causes mold)
- Checking too often (disrupts process)
- Not enough pressure
- Removing before fully dry

*Properly pressed flowers can last decades when stored correctly*

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## Creating a Scientific Herbarium

*Preserve knowledge – Document flora – Contribute to science*

### Essential Label Information

Every specimen needs:
- **Scientific name** (genus + species)
- **Common name(s)**
- **Collection date**
- **Location** (GPS if possible)
- **Habitat description**
- **Collector's name**
- **Notes** (flower color, scent, height)

*Document details BEFORE pressing—some won't be visible later!*

### Modern Storage Best Practices

**Archival Materials:**
- Acid-free mounting paper
- Archival glue (PVA, not regular glue)
- Linen tape or thread for heavy parts
- Fragment packets for loose pieces

**Storage Conditions:**
- Cool (50-65°F), low humidity
- Dark (light fades colors)
- Sealed cabinets or boxes
- Freeze new additions to kill pests

### Cultural Documentation

Consider recording:
- Traditional uses (medicinal, food, fiber)
- Indigenous names
- Folk knowledge about the plant
- Seasonal availability
- Associated species in habitat

*"Herbaria are libraries of nature—some specimens are 200+ years old and still used for research today."*

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## Craft Applications: What to Make

### Beginner Projects

| Project | Notes | Color Retention |
|---------|-------|-----------------|
| Bookmarks | Laminated for durability, great gifts | Good |
| Greeting Cards | Personal touch, seal under wax paper | Moderate |
| Nature Journals | Document your garden, combine with notes | Varies |

### Intermediate Projects

| Project | Notes | Color Retention |
|---------|-------|-----------------|
| Framed Art | Wall decor, shadow boxes, UV-protective glass | Moderate-Good |
| Candle Decoration | Adhere with warm spoon, dip in wax to seal | Moderate |
| Coasters & Trays | Resin-sealed surfaces, functional art | Excellent |

### Advanced Projects

| Project | Notes | Color Retention |
|---------|-------|-----------------|
| Resin Jewelry | Pendants, earrings, sealed from air | Excellent |
| Food Decoration | Cakes, cookies – use only edible flowers! | Short-term |

*Today we'll make bookmarks and greeting cards using pre-pressed flowers*

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## Let's Make Something Beautiful!

### Today's hands-on activities

### Activity 1: Press Your Own (~20 min)

**You'll receive:**
- Your own flower press to keep
- Selection of fresh flowers
- Blotting paper refills

**What you'll do:**
1. Select flowers to press
2. Prepare them (trim, flatten)
3. Arrange in your press
4. Take home to finish drying!

### Activity 2: Laminated Bookmark (~20 min)

**Materials provided:**
- Pre-pressed flowers (from my collection)
- Cardstock in various colors
- Laminating pouches

**What you'll do:**
1. Choose your background
2. Arrange flowers creatively
3. Laminate to seal
4. Add ribbon or tassel!

### Activity 3: Greeting Card (~20 min)

**Materials provided:**
- Pre-pressed flowers
- Blank cards & envelopes
- Craft glue, wax paper

**What you'll do:**
1. Plan your design
2. Carefully glue flowers
3. Press under wax paper
4. Beautiful handmade card!

*Don't worry about perfection—nature is beautifully imperfect!*

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## Keep Learning: Resources & Next Steps

### Local Arizona Resources

- **Desert Botanical Garden** – dbg.org – Plant ID, classes, tours
- **AZ Native Plant Society** – aznps.com – Field trips, plant lists
- **AZ Rare Fruit Growers** – facebook.com/AZRFG – Edible plants

### Your Next Steps

**This week:**
- Check your press—don't peek too often!
- Gather more flowers to press

**In 2-4 weeks:**
- Remove dried flowers carefully
- Store flat in acid-free paper

**Keep exploring:**
- Try different flowers each season
- Experiment with new crafts!

### Stay Connected

**Sofia Penabaz-Wiley**

Ph.D., Environmental Science

Landscape & Ethnobotany

**sofiapenabaz.com**

*Take the handout home for flower lists, pressing tips, and links to all these resources!*

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# THANK YOU

## Happy Pressing!

*"In every walk with nature, one receives far more than he seeks."*

— John Muir

Questions? Let's chat during craft time!

##### Sofia Penabaz-Wiley, Ph.D. | sofiapenabaz.com | HeatSync Labs