What Are Wedding Flowers Made Of? A Guide to Floral Mechanics and Materials

If you've ever wondered what's actually holding your bridal bouquet together, or how a ten-foot ceremony arch stays upright through an afternoon of Sierra Nevada wind, you're asking exactly the right questions. Most couples never think about floral mechanics until something goes wrong, and the best florists make sure you never have to.

Here's an honest, behind-the-scenes look at how wedding flowers are actually built.

The Bouquet

A bridal bouquet looks effortless. What's underneath is anything but.

Hand-tied construction is the most common method for bouquets, and when done well, it's also the most beautiful. Stems are arranged by hand, one at a time, building the shape from the center out. The designer spirals the stems as they work — this is what creates that rounded, garden-gathered silhouette — and once the shape is right, the stems are bound tightly with waterproof floral tape and then finished with ribbon, twine, or another material that matches the aesthetic of the wedding.

At Golden Flowers, all of our bouquets are hand-tied. There's no foam, no cage, no plastic framework hidden inside. Just the stems themselves, arranged with intention and bound securely enough to survive a full wedding day.

Bouquet stems are typically cut at an angle and kept in water right up until the moment you're handed your flowers. In the hours before a wedding, a well-conditioned bouquet will hold its shape and freshness for the entire day without any mechanical intervention.

Stem wrapping serves both aesthetic and practical purposes. A clean wrap holds the spiral in place and gives you something comfortable to hold. Satin ribbon is classic. Dried grasses, raw twine, and silk ribbon are popular for more organic or editorial aesthetics. Some florists add a charm, a photo, or an heirloom — a grandmother's brooch, a piece of lace from a mother's dress.

Centerpieces and Table Arrangements

This is where floral mechanics get more varied, and where the foam-free vs. traditional distinction matters most visibly.

Traditional foam-based centerpieces use a block of floral foam, usually the brand Oasis, soaked in water and placed inside the vessel. Stems are pushed directly into the foam, which holds them in place and provides hydration. It's effective, but the foam is a single-use plastic that doesn't biodegrade and breaks down into microplastics.

Foam-free centerpieces use several alternative approaches depending on the vessel and the design:

Chicken wire is crumpled and fitted inside a vessel, creating a loose grid that holds stems at any angle. It's infinitely reusable and gives arrangements that natural, slightly unruly quality that foam rarely achieves.

Pin frogs — also called kenzan — are heavy metal or ceramic grids that sit at the base of a vessel. Stems are pressed onto the pins, which hold them firmly in place. They're particularly useful for arrangements with a structured, ikebana-influenced aesthetic.

Flower frogs are the glass, ceramic, or metal inserts that were standard before foam existed. They're making a well-deserved return in studios committed to sustainable design.

Bud vases and small vessels often need no mechanics at all — a single stem or small grouping of three stems will support itself naturally.

At Golden Flowers, we work exclusively with foam-free mechanics for arrangements. Our arrangements are built on chicken wire, pin frogs, and hand-tied techniques. The result tends to look more alive, more naturalistic, and more at home in the Sierra Nevada landscape we design within.

Ceremony Arches and Large Installations

This is the category that raises the most questions, and for good reason. A ceremony arch at a Tahoe venue needs to hold significant weight, withstand wind, and look stunning from 50 feet away and in close-up photographs. How it's built matters enormously.

The structure itself is typically a metal frame — most commonly a geometric arch, an asymmetrical hoop, or a wooden arbor provided by the venue or rented through the florist. The florals are attached to this structure, not the other way around.

Attachment methods vary by florist and by design. Some use zip ties hidden behind foliage. Others use floral wire, which can be twisted and bent to secure stems at any angle. Chicken wire panels are sometimes attached to the frame first, creating a grid that florals can be woven through. For very lush, garden-style installations, mechanics are often layered — a wire armature, then bound clusters of stems, then individual blooms tucked into gaps.

Water tubes — small plastic vials with a rubber cap — keep individual stems hydrated within larger installations. A stem is inserted through the cap into the water-filled tube, which is then hidden within the foliage. This is how we keep delicate blooms like garden roses, sweet peas, and ranunculus looking fresh throughout a ceremony and into the reception.

Weight distribution is something a florist with installation experience thinks about carefully. A lush arch that's heavier on one side than the other will lean. Greenery is used strategically not just for beauty but for balance. At mountain venues with uneven ground or elevated platforms, this calculation gets more complex.

Boutonnieres and Personal Flowers

Boutonnieres are one of the most technical pieces in a wedding order relative to their size. A single stem — or a small cluster of two or three blooms — needs to stay upright, look intentional, and survive being pinned to a lapel for hours.

The construction involves wiring and taping individual stems. A thin floral wire is inserted through the base of each bloom and wrapped downward alongside the stem, then the whole thing is wrapped in floral tape, which bonds to itself when stretched and creates a secure, clean finish. This technique also allows the boutonniere to be bent and shaped so it sits at exactly the right angle against a jacket.

Flower crowns use a similar wiring technique, with individual blooms wired onto a flexible base, usually a wire wrapped in floral tape that's sized to fit the wearer's head.

Hair pieces and corsages are typically built on small wire or comb bases, with blooms wired and taped individually before being assembled into the final piece.

Greenery and Foliage

Foliage is often underestimated in wedding florals, but it does as much structural work as aesthetic work.

Eucalyptus, olive branch, Italian ruscus, ferns, and smilax are workhorses in wedding design, as they fill space, provide movement, hide mechanics, and give arrangements the layered quality that makes them feel abundant rather than sparse. In foam-free design especially, greenery is often the first thing placed, creating a base that blooms are then nestled into.

For Tahoe weddings, we lean heavily on foliage that feels native to the Sierra Nevada — branches, dried grasses, locally grown herbs, and whatever the season is offering from the farm. This is what makes a Golden Flowers arrangement feel like it belongs here, rather than something that was assembled in a warehouse and delivered from across the country.

What Holds It All Together

The honest answer is: a combination of technique, experience, and materials that most guests never see. The goal of good floral mechanics is invisibility — everything hidden, everything secure, everything designed to look like it simply grew that way.

When you work with a florist who understands materials deeply, who has built installations in mountain wind and summer heat, and who chooses their mechanics as thoughtfully as their blooms, the flowers do what flowers are supposed to do: they tell the story of your day without getting in the way of it.

Golden Flowers is a foam-free wedding floral studio based in Incline Village, Nevada, serving couples across the Lake Tahoe and Sierra Nevada region. We grow our own flowers on our farm, source from local and regional farmers and build every arrangement by hand. If you're planning a Tahoe wedding, we'd love to hear about it.