No-Sew Flower Costume – Easy Kids DIY

Here’s the easiest no-sew flower costume you’ll ever make. It’s a no sew, kid-approved project that comes together fast with basic supplies you probably already have: cardstock, poster board, hot glue, and a green outfit for the “stem.” It’s lightweight, comfy, and budget friendly, so you can outfit a whole bouquet without spending much.

The best part is how customizable it is…pick any color palette, choose daisy, sunflower, or make-believe blooms, and scale the petals to fit toddlers or big kids. This quick DIY is perfect for last-minute Halloween plans, school dress-up days, or sibling group costumes. below I’ll show you exactly how to make this cardstock flower costume step by step.

Want a fast adult option to match? See my blog post on how to make a DIY Halloween Costume T-Shirt Without Using a Cricut.

What You’ll Need for a No-Sew Flower Costume

This quick flower costume uses simple, inexpensive supplies you can grab at any craft store. It’s easy to customize by swapping out cardstock colors, petal shapes, and flower type. Or add extra details like glitter to fit your trick-or-treater’s personality.

• Colored cardstock for petals
• Cardboard
• Elastic
• Poster board
• Packaging tape
• Brown fabric or kraft paper
• Hot glue gun and glue sticks
• Scissors
• Twine, ribbon, or cord for straps
• Green clothing for the “stem” underneath

How to Make a No-Sew Flower Costume (Step-by-Step)

Step 1: Make the Flower-Pot Skirt

You could skip the pot and just do the headpiece with green clothes, but the flower-pot really sells the flower pot costume look.

1. Cut the poster board to kid height so it lands above the knees.
2. Trim off a strip from the excess and tape that strip to one short end to make a longer rectangle. Repeat as necessary until the rectangle is long enough to wrap comfortably around.
3. Wrap the rectangle around your child with walking room. Flare the top a little wider than the bottom to mimic a real flower pot.
4. Mark the overlap, remove, and tape the seam.
5. Set the pot upright and trim the top and bottom so the edges are even.

It kind of looks like a bit like an upside-down lamp shade or small waste basket at this point, which is perfect. The last thing you need to do is cut a long strip of poster board that we will use as the top band of our flower pot.

Step 2: Cover the Pot with Fabric

1. Run a line of hot glue along one vertical edge of the poster-board pot. Press the brown fabric to start the seam.
2. Roll the pot and add glue in short sections, smoothing fabric as you go. Keep the seam at the back.
3. Wrap excess fabric over the top and bottom edges and glue to the inside. Snip small relief cuts so it lays flat.
4. Trim any extra at the back and glue the overlap down. It does not have to be perfect.

Add the rim band:

5. Wrap the long thin rectangle (from Step 1) in the same brown fabric: glue along a long edge, roll the rectangle to cover, and secure the overlap.
6. Glue the finished band around the top of the pot like a flower-pot rim. Overlap and glue the ends at the back.
7. Press all seams firmly, then let the glue cool before moving to the next step of the flower costume.

Step 3: Add Straps

1. Mark four holes near the top rim of the pot: two in front, two in back, evenly spaced so the flower costume hangs level.
2. To make the holes, use one of these methods, be sure to add a scrap piece of wood underneath your pot:
   • Hammer and nail setter punch (what I used)
   • Awl with a small mallet
   • Heavy-duty hole punch
   • Drill with a small drill bit (⅛ in) using light pressure
3. Cut two lengths of twine or ribbon for straps. Thread each piece from the outside to the inside, then back out the second hole to create a loop.
4. Knot the ends on the inside of the pot. Double-knot for security and trim the tails.
5. Try it on and adjust knot positions so the pot sits just above the knees and feels comfy for walking.

So quick and easy – this kids flower costume is a perfect last-minute idea.

Step 4: Choosing Flower Costume Colors

For making the fun flower headpieces, I grabbed a multipack of colored cardstock so the kids had lots of options to choose from. For each flower costume, pick 2 or 3 coordinating colors for the petals, then choose a contrasting color for the round rim around the face.

Step 5: Cut the Cardstock Petals

Start by sketching a basic petal shape. Don’t stress and try to make it perfect. Homemade costumes aren’t supposed to be perfect. We started with red, cut it out, then traced a slightly smaller version on pink for layered depth.

There are no hard rules here. You can create a flower costume with whatever petal shapes and colors you want. Once you like the shape, use it as a template to trace multiples. Then recruit some helpers and pass out the scissors. You don’t want to spend all day cutting out these petals alone. Trust me!

Step 6: Assemble the Flower Headpiece

Finish the flower costume headpiece by first arranging the larger petals in a neat ring. When the spacing looks right, glue them together and add a second layer of smaller petals (optional). Cut a contrasting cardstock ring for the face opening, then glue it over the center to clean up the edge and complete the flower.

Turns out we made flower ponchos. Super cute, but not the plan. Cardstock and hot glue alone won’t hold the shape, so the petals sagged. No worries.

To stiffen the flower costume headpieces so they stand up, glue a cardboard ring to the back. It’s fast, lightweight, and keeps the petals crisp. Attach an elastic strap, adjust the fit, and you’re good to go.

Finished No-Sew Flower Costume

Here she is in the finished flower costume, and I’m obsessed. Over a simple green outfit for the “stem,” the bright petals and little flower-pot skirt look so cute and complete. It’s comfy, easy to wear, totally original, and ridiculously adorable… I love how these flower costumes turned out.

Our Themed Family Halloween Costume

And here’s our whole garden crew! For this year’s family costume, we’ve got – three girls in their flower costume headpieces and little flower-pot skirts, mom as the gardener (straw hat, denim overalls, and a trowel), the little brothers as the cutest garden gnomes, and dad as a bag of plant fertilizer. It pulled together so easily, and the colors of the flower costumes really pop in photos. So simple, adorable, and totally on theme. I’ve linked the tutorials for Dad’s shirt and the DIY gnome costumes below.

• DIY Halloween Costume T-Shirt Without Using a Cricut
• How to Make a Garden Gnome Costume for Kids

We do a family-themed costume every single year, and it’s one of my favorite traditions. If you’re hunting for ideas for your family Halloween costume, I rounded up our past costumes plus a bunch of other fun suggestions. There are so many quick last-minute options, DIYs, and budget-friendly picks. Check them out here: 31 Family Halloween Costumes: DIY Ideas for Every Age.

📌 Pin This No-Sew Flower Costume

Save this quick, budget-friendly flower costume to your DIY board so you can find it when Halloween (or school spirit week!) rolls around.

FAQ: No-Sew Flower Costume