Let’s create a beautiful yellow 3D flower crochet coaster! This project is wonderfully easy and will add a cheerful pop of color to any table. We’ll use soft, absorbent cotton yarn, perfect for protecting surfaces from drinks.

How to Make a Crochet Coaster with a Yellow 3D Flower
This guide is broken down into three main parts: first, creating the flat coaster base, second, crocheting the simple yet effective yellow 3D flower, and finally, assembling them.
1. Essential Materials You’ll Need
- Yarn:
- For the Coaster Base: 100% Worsted Weight Cotton Yarn (approx. 50-60 yards / 45-55 meters). Choose a color that complements yellow, like white, green, grey, or even a soft blue.
- For the 3D Flower: 100% Worsted Weight Cotton Yarn in Yellow (approx. 20-30 yards / 18-27 meters). You can use two shades of yellow for the flower layers for more depth if you have them, or one shade is perfectly fine!
- Crochet Hook: 4.5mm (US G/7) or 5.0mm (US H/8). The exact size depends on your personal tension; aim for a dense fabric for the coaster.
- Scissors: For cutting yarn.
- Yarn Needle (Tapestry Needle): Essential for weaving in ends and assembling the flower.

2. Basic Crochet Stitches You’ll Use
You’ll only need a few fundamental stitches for this project:
- Chain (ch): The starting point for many stitches.
- Slip Stitch (sl st): Used for joining rounds and moving across stitches.
- Single Crochet (sc): Creates a tight, dense fabric, perfect for the coaster base.
- Double Crochet (dc): A taller stitch, ideal for creating the flower petals.
- Magic Ring (MR): (Also called Magic Circle) This is the best way to start circular projects, creating a perfectly tight center. If you’re new to it, a quick video search will show you how, or you can use the chain method described below.
Part 1: Crafting the Coaster Base
We’ll make a classic round coaster using single crochet stitches, ensuring it’s sturdy and functional.
Abbreviations (US Crochet Terms):
- ch: chain
- sc: single crochet
- sl st: slip stitch
- MR: magic ring
Instructions for Coaster Base:
Starting Your Coaster (Choose ONE method):
- Method A: Magic Ring (Recommended for a tight center)
- Create a Magic Ring (MR).
- Ch 1 (this chain is for height and does NOT count as a stitch).
- Work 8 sc into the Magic Ring.
- Gently pull the yarn tail to close the center hole tightly.
- Join with a sl st to the top of the first sc you made. (8 sc)
- Method B: Chain Method (Easier for Absolute Beginners)
- Ch 2.
- Work 8 sc into the second chain from your hook (the very first chain you made).
- Join with a sl st to the top of the first sc you made. (8 sc)
Building the Coaster (Increasing Rounds to Keep it Flat):

- Round 1:
- Ch 1 (does not count as a stitch).
- Work 2 sc in each st around.
- Join with a sl st to the top of the first sc. (16 sc)
- Round 2:
- Ch 1 (does not count as a stitch).
- *1 sc in the next st, 2 sc in the following st*. Repeat from * to * around.
- Join with a sl st to the top of the first sc. (24 sc)
- Round 3:
- Ch 1 (does not count as a stitch).
- *1 sc in each of the next 2 sts, 2 sc in the following st*. Repeat from * to * around.
- Join with a sl st to the top of the first sc. (32 sc)
- Round 4:
- Ch 1 (does not count as a stitch).
- *1 sc in each of the next 3 sts, 2 sc in the following st*. Repeat from * to * around.
- Join with a sl st to the top of the first sc. (40 sc)
Continue this pattern until your coaster base is about 4-5 inches (10-12 cm) in diameter. To continue, you’ll simply increase the number of single crochets between the increase stitches by one in each subsequent round (e.g., Round 5 would be 1 sc in each of the next 4 sts, then 2 sc in the following st).
- Once your base is the desired size, fasten off your yarn by cutting it (leaving a tail of about 6-8 inches) and pulling it completely through the loop on your hook.
- Weave in all ends securely using your yarn needle.

Part 2: Crocheting the Yellow 3D Flower
This flower uses simple clusters of double crochet stitches to create distinct, slightly raised petals. We’ll make two layers for a fuller, more “3D” effect.
Instructions for Yellow 3D Flower:
Flower Center / Base (Common for both layers – use your yellow yarn):
- Create a Magic Ring (MR).
- Ch 1 (does NOT count as a stitch).
- Work 8 sc into the Magic Ring.
- Pull ring tight. Join with a sl st to the first sc. (8 sc) (This forms the small base for your petals.)
Flower Layer 1 (Back Layer – Larger Petals – use yellow yarn):
This layer will sit behind the second layer, giving the flower its initial fullness.
- From the center base (8 sc), Ch 2 (does NOT count as a stitch).
- *In the same stitch where you just joined, work (3 dc) (this forms your first petal cluster).
- Sl st into the next stitch.* Repeat from * to * 7 more times. (You will have created 8 “petals,” each made of 3 dc stitches, with a slip stitch in between them. This creates a dense, slightly ruffled layer.)
- Fasten off, leaving a long tail (about 12 inches / 30 cm) for sewing. Weave in the starting tail of this flower base.

Flower Layer 2 (Front Layer – Smaller Petals – use yellow yarn, or a lighter/darker yellow for contrast):
This layer will sit on top of the first, adding more dimension.
- Create a Magic Ring (MR).
- Ch 1 (does NOT count as a stitch).
- Work 6 sc into the Magic Ring.
- Pull ring tight. Join with a sl st to the first sc. (6 sc) (This is a smaller base for a smaller top layer of petals.)
- Ch 2 (does NOT count as a stitch).
- *In the same stitch where you just joined, work (3 dc).
- Sl st into the next stitch.* Repeat from * to * 5 more times. (You will have created 6 “petals” made of 3 dc stitches.)
- Fasten off, leaving a long tail (about 12 inches / 30 cm) for sewing. Weave in the starting tail of this layer’s base.
Part 3: Assembly & Finishing Your Yellow 3D Flower Coaster

This is where your coaster and the vibrant yellow flower come together!
- Stack the Layers: Place the smaller 6-petal yellow flower (Layer 2) directly on top of the center of the larger 8-petal yellow flower (Layer 1). Arrange the petals so they are staggered (not directly on top of each other) for a fuller, more natural look.
- Secure Flower Layers Together: Use the long yarn tail from Layer 2 and your yarn needle. Stitch through the very center of both flower layers a few times (like an “X” or a small circle) to secure them to each other.
- Attach Flower to Coaster:
- Position the assembled yellow 3D flower (both layers secured together) in the exact center of your finished coaster base.
- Using the same long tail from Layer 2 (or a fresh piece of yellow yarn if needed), stitch through the center of the flower and then down through the coaster base.
- Make several small stitches in a circular motion around the very center of the flower, ensuring your needle goes through all layers (both flower layers and the coaster base). This will firmly attach the flower and subtly pull the center down, enhancing the 3D effect.
- Optional Center Detail: For an extra touch, you can use a small piece of brown or darker yellow yarn to create a few French knots or just a small stitched circle in the very center of the flower before tying off the sewing yarn.
- Weave in All Remaining Ends: Double-check that all yarn tails (from both the coaster and the flower) are securely woven into the fabric on the back/wrong side of your coaster. Trim any excess yarn close to the fabric.
- Blocking (Highly Recommended):
- Gently wet your entire coaster (with the flower attached). You can briefly dunk it in lukewarm water.
- Carefully squeeze out excess water (do not wring!).
- Lay the coaster flat on a clean towel or a foam blocking mat. Gently shape the coaster base into a perfect circle and softly arrange the 3D petals as desired. You can use rust-proof pins to hold the coaster’s shape if you have them.
- Allow it to air dry completely. Blocking will help your coaster lay perfectly flat, even out your stitches, and set the beautiful 3D shape of your yellow flower.
You now have a wonderfully easy, cheerful, and functional yellow 3D flower crochet coaster! Enjoy using it or gifting it. What other colors or simple designs would you like to explore?