Crochet Granny Pentagon

The granny pentagon is a fun twist on the classic granny square. By working five corners instead of four, you create a beautiful pentagon shape.

This pattern uses the traditional “granny cluster” (groups of 3 double crochets) separated by chain spaces.

It is highly customizable, easy to scale up by adding more rounds, and looks fantastic whether worked in a single solid color or vibrant color changes.

Essential Project Details

• Skill Level: Easy / Advanced Beginner

• Terminology: US Crochet Terms

• Suggested Materials: Medium/Aran weight yarn paired with a 5.5 mm (I-9) crochet hook, a tapestry needle for weaving in ends, and scissors.

Abbreviations & Pattern Logic

Before diving into the steps, keep these standard abbreviations in mind:

• Ch: Chain

• Dc: Double Crochet

• Sl St: Slip Stitch

• Sp: Space

• MC / MR: Magic Circle / Magic Ring

The Secret to the Pattern: Every corner consists of [3 dc, ch 2, 3 dc] worked into the same space. Every straight side consists of 3 dc worked into the gaps between clusters. Each round you add will increase your stitch count by exactly 15 double crochets (5 sides $\times$ 3 stitches).

Step-by-Step Instructions

Step 1: Setting the Five-Sided Foundation

This round establishes the 5 corners of your pentagon.

1. Begin by forming a Magic Circle.

2. Chain 4 (this counts as your very first double crochet plus a chain-2 corner space).

3. Work a cluster of 3 double crochets, followed by 2 chains. Repeat this sequence 3 more times.

4. To finish the final side, work 2 double crochets into the ring.

5. Close the round by making a slip stitch into the 3rd chain of your starting chain-4. Pull the magic circle tail tight to close the center hole.

• Round Total: 15 dc, 5 corner spaces.

Step 2: Expanding the Corners

This round builds out the five distinct points of the pentagon.

1. Slip stitch forward into the immediate chain-2 corner space.

2. Chain 4 (counts as 1 dc and a chain-2 space), then work 3 double crochets into that same corner space.

3. Move to the next corner space and work [3 dc, ch 2, 3 dc]. Repeat this exact corner setup in the remaining 3 corner spaces.

4. When you arrive back at your starting corner, work 2 double crochets into the space to complete the initial cluster.

5. Slip stitch into the 3rd chain of your starting chain-4 to close.

• Round Total: 30 dc, 5 corner spaces.

Step 3: Adding the First Side Clusters

Now you will begin filling in the straight sides between the five corners.

1. Slip stitch into the first chain-2 corner space.

2. Chain 4 (counts as 1 dc and a chain-2 space) and work 3 double crochets into the same space.

3. Look at the side ahead of you: work 3 double crochets directly into the gap between the two large corner clusters of the previous row.

4. At the next corner, work your standard corner: [3 dc, ch 2, 3 dc].

5. Repeat this pattern all the way around—working a 3-dc cluster in every side gap and [3 dc, ch 2, 3 dc] in every corner space.

6. To finish the round, work 2 double crochets into the starting corner space, and slip stitch into the 3rd chain of the starting chain-4.

• Round Total: 45 dc, 5 corner spaces.

Step 4 & Beyond: Growing Your Pentagon

To make your pentagon larger, simply repeat the logic used in Round 3.

• Start every round by slipping into the corner, chaining 4, and placing 3 dc in the same space.

• Place 3 double crochets into every side gap along the edges. (Round 4 will have two side clusters per side, Round 5 will have three, etc.)

• Place [3 dc, ch 2, 3 dc] into the 5 corner spaces.

• Always finish the round by putting 2 dc in the first corner and slip stitching to the top of your starting chain.

Design Tip: Switching Colors

To create stripes or a rainbow effect, simply fasten off your current yarn at the end of any round.

Grab your new color, tie a slipknot on your hook, and join it with a slip stitch directly into any chain-2 corner space. Chain 4, work 3 double crochets into that same space, and continue the pattern instructions as normal!