Gilt Piping garnish.top

Sugar Flowers · Family 109

Hydrangea Cluster with Wilton 109

Forty tiny drop flowers in three shades, and the fastest way to cover a large cake surface.

A hydrangea is not one flower: it is a cluster of forty small four-petal florets, and the 109 drop-flower tip makes each one in a single squeeze. The whole technique is about shade distribution - three bags at different depths of the same colour, scattered so that no two neighbours match. A 15 cm cake top takes about eleven minutes.

Tip
Wilton 109
Icing stage
Medium peak
Difficulty
Beginner
Teeth
6
Symmetry
11×
Cure
12 hours
Finished size
70 mm
Released
8 October 2026

By The Sugar Bench · Released 8 October 2026

Method

5 steps, pressure stated at each one

Hand position and bag pressure are stated for every step, because that is where most failures happen.

Hydrangea Cluster with Wilton 109 — Step 1: Bag three shades

Step 01 of 05

Bag three shades

Mix 1.2 kg of medium-peak buttercream and divide into three bowls: 400 g at #E9A6BC, 400 g at a shade halfway to the dark, and 400 g at #5A1B2E. Bag each in its own 25 cm bag with a 109.

HandLabel the three bags with a strip of tape so you never pick up the wrong shade mid-cluster.
Bag pressureNone - this step is organisation, and it is what makes the cluster look designed.
Hydrangea Cluster with Wilton 109 — Step 2: Mark the mass

Step 02 of 05

Mark the mass

With a skewer, score a 70 mm circle on the cake top. This is the footprint of the cluster. Everything inside it gets florets; nothing outside does.

HandLight pressure with the skewer - you want a shallow guide line, not a cut through the crumb coat.
Bag pressureVery light.
Hydrangea Cluster with Wilton 109 — Step 3: Pipe the centre florets

Step 03 of 05

Pipe the centre florets

Start at the centre of the circle and pipe six florets with the dark bag, spaced about 20 mm apart. Squeeze for one second, stop fully, lift straight up 20 mm.

HandTip 2 mm above the surface, vertical. The lift is a whole-arm movement so the tip never drags sideways.
Bag pressureMedium for one second, then zero before the lift.
Hydrangea Cluster with Wilton 109 — Step 4: Fill outward in three shades

Step 04 of 05

Fill outward in three shades

Work outward in rings, alternating shades so no two neighbours match. Reduce the tip height to 1 mm for the outer florets so they sit slightly lower and the mass has a domed silhouette. Expect around forty florets for a 70 mm cluster.

HandRotate the cake rather than reaching across it; your forearm should stay inside a 30 cm working arc.
Bag pressureMedium, one second each - a slow squeeze makes a mushroom-shaped floret instead of a flat one.
Hydrangea Cluster with Wilton 109 — Step 5: Add eleven dark accents on top

Step 05 of 05

Add eleven dark accents on top

Finish with eleven florets from the darkest bag placed on the upper third of the mass, which is what gives the cluster its shadowed, three-dimensional look. Keep them at least 15 mm apart so the eye reads them as accents rather than a second cluster.

HandStand back a metre to check the distribution before adding the last three; the accents are the step that most often gets overdone.
Bag pressureMedium, one second, then stop.

Scroll sideways for each step →

109 makes a floret, not a flower

The 109 has six shallow teeth and a wide opening, so a single squeeze gives a 14 mm floret with soft, petal-like edges and a small dimple in the middle. That dimple is what you want - real hydrangea florets have a visible eye. Squeeze for one second, stop, lift straight up 20 mm and move on.

Three bags, one hue

Load three 25 cm bags with the same base buttercream at three strengths: 400 g at #E9A6BC, 400 g at a 50 percent deeper mix, and 400 g at #5A1B2E. All at medium peak. Keeping the three bags on the bench at once is the whole method - if you mix shades as you go, the cluster ends up with visible patches of one tone.

Scatter rules that stop it looking like polka dots

Never pipe two florets of the same shade within 40 mm of each other. Work in a loose triangle: dark, pale, mid, then dark again 45 mm away. If a shade has gone three florets without being used, it is overdue. The cluster should read as a single mass with depth, not as a grid.

Edges, gaps and the fourth petal

Florets at the edge of the cluster get piped 2 mm lower so the mass has a soft silhouette. Small gaps between florets are fine and should not be filled - a hydrangea with a few visible shadow gaps looks grown; one that has been filled until solid looks like a sponge. If a floret comes out with only three visible petals, leave it: it will read as a side-facing floret, which is an improvement.

Setting and stacking

Twelve hours at 18 C is enough for a cluster to crust, but a hydrangea-covered cake should not be stacked, because the florets at the shoulder are the ones that carry the load and they are only 6 mm tall. For a tiered cake, keep the hydrangea cluster on the top surface only.

Failures and fixes

Symptom Cause Fix
Cluster looks like polka dots Each shade was piped as its own block instead of being scattered. Re-work by adding florets of the missing shade into the gaps - hydrangeas are the one technique you can genuinely repair after piping.
Florets have a mushroom shape Squeezed too slowly, so the icing domed instead of fanning. One second per floret at medium pressure; count it out loud if you drift.
Visible pale patch in the middle Not enough dark florets in the base layer. Pipe a further six dark florets into the centre before adding the accents; the dark layer is the one the eye reads as depth.

Before you bag up

  • Three bags in three shades, all medium peak
  • 70 mm circle scored as a guide
  • No two same-shade florets within 40 mm
  • Outer florets piped 1 mm lower
  • Eleven dark accents at least 15 mm apart

This card describes a method, not a formulation tested for allergens, shelf life or food safety; the ingredients, hygiene and safety of anything you give to someone else are your responsibility. Nothing here is sponsored and there is no affiliation with any tip or ingredient manufacturer. See the terms page for the full note.

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