Gumpaste Hydrangea Filler Flowers | The Bouquet Hack Pros Use
Chef Alan TetreaultIn this tutorial: What You'll Need · Making the Buds · Forming the Blossoms · Wiring the Blossom Center · Attaching the Blossom to the Wire · Coloring the Flowers · Assembling the Spray · Arranging on a Cake
Hydrangeas are one of the most versatile filler flowers in cake decorating – they come in a wide range of colors and tuck beautifully into the gaps between larger blooms like roses, carnations, and peonies. In this tutorial, Chef Alan Tetreault of Global Sugar Art demonstrates how to make simple gumpaste hydrangea buds and blossoms, wire them together into small sprays, and color them for a natural, elegant finish. Even a few of these little sprays can transform a modest floral arrangement into something far more dramatic – with very little effort.
What You'll Need
- Gum paste – small amounts for buds and blossom centers; should be pliable and fresh · shop
- Hydrangea flower maker set – two-piece silicone veiner mold and two different-sized cutters · shop
- 24- or 26-gauge white floral wire – for buds and individual blossoms · shop
- 22-gauge white floral wire – a heavier wire for reinforcing and lengthening the stem · shop
- White floral tape – one-third or one-half width; full width is too bulky · shop
- Crystal Colors Raspberry petal dust – for the base blossom color · shop
- Natural pearl dust – an ivory-toned luster for a soft, blended finish (not super pearl) · shop
- Gum glue – for adhering paste to wire
- Cornstarch – to prevent sticking on the board and fingers
- Palette knife or small sharp knife – for scoring buds and blossom centers
- Needle-nose pliers (long) – for positioning blossoms after assembly
- Styrofoam block – for standing wired pieces upright while drying
Making the Buds
The buds are the simplest component and dry quickly, so Chef Alan recommends starting with these.
- Cut a length of 24- or 26-gauge wire and bend a small hook at one end.
- Pinch off a piece of gum paste about the size of a small pea.
- Poke a small hole in the back of the paste, dip the hooked wire end in gum glue, and insert it.
- Press the paste up against the wire and roll it between the fingers to smooth – if it sticks, dust the fingers with a little cornstarch. The finished shape should resemble a small cotton swab.
- Using a palette knife, score two perpendicular marks across the top to create four small lobes.
- Stand the buds upright in a styrofoam block and let them dry completely.
💡 Tip: Make the buds in slightly varied sizes for a more natural look, but keep the range subtle – very large and very small buds side by side will look unnatural.
Forming the Blossoms with the Silicone Mold
The hydrangea flower maker comes with a two-piece silicone veiner mold and two different-sized cutters, but no alignment markings.
- Before first use, draw a registration line across both halves of the mold with a pen so they can be aligned correctly every time.
- Dust the board lightly with cornstarch, roll out the gum paste, and cut a blossom shape.
- Lay the cutout into the concave half of the mold (the piece that sits face-down).
- Press the top half of the mold onto the blossom, applying pressure only on the outer corners of the petals.
⚠️ Do not press in the center of the mold. Pressing the center thins the paste too much – it will break apart when the wire is threaded through, making it impossible to attach the blossom securely.
- Remove the veined blossom from the mold. It should have crisp petal detail and adequate thickness in the center.
Wiring the Blossom Center
Each blossom needs a tiny wired center before the veined petals are attached.
- Cut a length of 24- or 26-gauge wire (the same gauge used for the buds).
- Take a very small piece of gum paste – about a quarter the size of a pea.
- Dip the hooked wire end in gum glue, then tap it to remove excess droplets.
- Push the wire into the paste and roll it into a tiny ball at the tip of the wire. If the paste sticks to the fingers, dust them with cornstarch.
- Score two perpendicular marks across the top of the ball, just like the buds.
💡 Tip: Excess gum glue is the most common problem at this stage. Chef Alan recommends dipping the wire and then tapping it so extra droplets fall off before inserting it into the paste.
Attaching the Blossom to the Wire
- Place a very small dot of gum glue in the center of the veined blossom.
- Thread the wire through the center of the flower from the front, pulling it until the scored center ball rests against the blossom.
- Flip the flower upside down – the glue will hold the blossom in place against the center.
- Bend the wire and hang the blossom upside down to dry.
⚠️ Getting the paste thickness right is critical. If the paste is too thin, the blossom may fall off the wire or collapse. If it is thick enough (but not overly thick), the petals will stay open in a natural shape as they dry.
Coloring the Flowers
Once the blossoms and buds are fully dry, dust them with petal color:
- Using a soft brush, apply Crystal Colors Raspberry dust to each blossom, concentrating on the center and blending outward.
- Optionally, top-dress with a light layer of natural pearl dust – an ivory-toned luster that blends beautifully and adds a subtle sheen without looking overly white.
- Color the buds the same way, but apply the raspberry dust more heavily – in nature, hydrangea buds tend to be deeper in color than the open blossoms.
💡 Tip: Hydrangeas come in a huge range of colors. Swap the raspberry dust for purples, blues, greens, or soft yellows to match any cake palette.
Assembling the Spray
Chef Alan assembles a small bouquet of approximately five buds and five blossoms, using a mix of the two cutter sizes.
↪ Tape the buds
- Gather five dried, colored buds.
- Using one-third- or one-half-width white floral tape, begin taping the buds together about an inch down from the tips – not right at the top. Leaving space allows each bud to be repositioned within the spray later.
↪ Add the blossoms and reinforcement wire
- Gather five dried blossoms in a mix of sizes.
- Position the blossoms slightly shorter than the buds so the buds peek out above.
- Begin taping the blossoms into the spray about an inch to an inch and a half below the bud cluster.
- Lay a piece of 22-gauge wire alongside the combined stems and tape it in for added stability and length.
- Continue taping down most of the way to the bottom of the stem.
⚠️ Tape slowly and carefully. Spinning the tape too fast is the quickest way to snap a fragile dried blossom. If the wires click together, slow down and guide them into position.
Arranging on a Cake
Once the spray is taped, use long needle-nose pliers to grip individual blossom wires at the back and turn each flower so it faces outward. The buds are sturdier and can be spread apart by hand.
The finished spray can be trimmed to any length and inserted into a floral arrangement on any size cake. Chef Alan demonstrates how even a couple of hydrangea sprays tucked between roses, carnations, or peonies transforms a cake's overall design – filling gaps and adding depth with minimal effort.
This tutorial is part of Global Sugar Art's library of free cake decorating videos by Chef Alan Tetreault. Browse all tutorials →
