Crochet Blanket Patterns

Radiant Spectrum Granny Square Throw Free Pattern

Anonymous July 18, 2026
Radiant Spectrum Granny Square Throw Free Pattern

Introduction

Immerse yourself in a cascade of colors with the Radiant Spectrum Granny Square Throw, a vibrant and cozy addition to any home. This crochet pattern combines traditional granny squares with a modern twist, creating a stunning rainbow effect. Perfect for beginners, this throw is not only a delightful project but also a beautiful piece of home decor that will brighten up any space.

Materials Needed

  • Yarn: Worsted weight yarn in the following colors: red, orange, yellow, green, blue, indigo, violet.
  • Hook: 5.0 mm crochet hook.
  • Gauge: One granny square measures 4 inches x 4 inches.

Step-by-Step Instructions

Creating the Granny Squares

  1. Start with a Magic Ring: Create a magic ring to begin your first granny square.
  2. Round 1:
    • Ch 3 (this counts as your first double crochet).
    • Work 2 double crochets (dc) into the magic ring.
    • Ch 2.
    • Repeat the sequence of *3 dc into the ring, ch 2;* a total of 3 more times.
    • Join with a slip stitch (sl st) to the top of the beginning ch-3. You should have 12 dc and 4 ch-2 spaces.
  3. Round 2:
    • Sl st into the next 2 dc and into the ch-2 space.
    • Ch 3 (counts as dc), then work 2 dc, ch 2, and 3 dc in the same ch-2 space (this creates your corner).
    • Ch 1, then (3 dc, ch 2, 3 dc) in the next ch-2 space. Repeat from * around.
    • Join with sl st to the top of the beginning ch-3. You should have 24 dc, 4 ch-2 spaces, and 4 ch-1 spaces.
  4. Round 3:
    • Sl st into the next 2 dc and into the ch-2 space.
    • Ch 3 (counts as dc), then work 2 dc, ch 2, and 3 dc in the same ch-2 space.
    • Ch 1, then work 3 dc in the next ch-1 space, ch 1, and (3 dc, ch 2, 3 dc) in the next ch-2 space. Repeat from * around.
    • Join with sl st to the top of the beginning ch-3. You should have 36 dc, 4 ch-2 spaces, and 8 ch-1 spaces.
  5. Continue Increasing:
    • Continue this pattern, increasing the number of ch-1 spaces between corners as the square grows, until each square measures 4 inches.
  6. Make the Squares:
    • Make a total of 49 squares, 7 in each color of the rainbow.

Assembling the Throw

  1. Arrange the Squares: Arrange the squares in a gradient pattern to create a beautiful rainbow effect.
  2. Join the Squares: Use your preferred method (e.g., whip stitch or slip stitch join) to connect the squares together.

Adding the Border

  1. Round 1:
    • Attach yarn in any corner.
    • Ch 1, then work single crochet (sc) evenly around the entire throw, working 3 sc in each corner.
    • Join with sl st to the first sc.
  2. Round 2:
    • Ch 3 (counts as dc), then work dc in each sc around, working 3 dc in each corner.
    • Join with sl st to the top of the beginning ch-3.

Finishing Touches

  1. Fasten off your yarn and weave in all ends for a neat finish.

Now you have your very own Radiant Spectrum Granny Square Throw! Enjoy the cozy warmth and vibrant colors it brings to your home.