If you’re looking for an easy, relaxing crochet project that grows round by round, this expanding square blanket is perfect. Designed with beginners in mind, this pattern uses basic stitches and a repeating round sequence to create a blanket of any size, from baby blankets to full king bedspreads. No complicated shaping, no joining, just smooth, consistent growth.
This blanket begins with a magic ring and grows outward into a square. Each round increases evenly at the corners, keeping the blanket flat and symmetrical. A simple texture round adds visual interest, while the stitch repeat remains easy to memorize. Whether you prefer solid colours, stripes, or bold colour changes, this design adapts beautifully.
Crochet the Full Flower Pot Blanket
Enjoy making this free granny square, then take your project even further with the complete Flower Pot Granny Square Blanket Pattern. Inside the premium PDF you'll find all 12 crochet square patterns, detailed joining instructions, blanket layout diagrams, yarn requirements, and a beautiful border pattern to complete your handmade crochet blanket.
Estimated Yarn Usage (DK Yarn)
| Blanket | Rounds | Weight Estimate | Meterage |
| Baby | 31 | ~ 335 g | 670 m |
| Afghan | 55 | ~ 1050 g | 2100 m |
| Double Bed | 71 | ~ 1760 g | 3520 m |
| King Bed | 92 | ~ 2960 g | 5920 m |
Effect of Larger Hook
Using a larger hook typically:
- Increases stitch height
- Square grows faster
- Fabric lighter / looser
Crochet a beautiful blanket from just one square! This easy one-square growing blanket pattern is perfect for beginners and grows round by round with simple stitches.
Resizing blanket according to Yarn Weight Categories
Category 3 – Light / Double Knit
| Blanket | Rounds Needed | Weight |
| Baby | ~25 rounds | 670 m |
| Afghan | ~44 rounds | 2100 m |
| Double | ~57 rounds | 3520 m |
| King | ~74 rounds | 5920 m |
Category 4 – Worsted / Aran
| Blanket | Rounds Needed | Weight |
| Baby | ~25 rounds | 535 m |
| Afghan | ~44 rounds | 1680 m |
| Double | ~57 rounds | 2815 m |
| King | ~74 rounds | 4735 m |
Category 5 – Bulky
| Blanket | Rounds Needed | Weight |
| Baby | ~22 rounds | 470 m |
| Afghan | ~38 rounds | 1470 m |
| Double | ~49 rounds | 2465 m |
| King | ~63 rounds | 4145 m |
Category 5 – Super Bulky
| Blanket | Rounds Needed | Weight |
| Baby | ~18 rounds | 370 m |
| Afghan | ~31 rounds | 1155 m |
| Double | ~40 rounds | 1935 m |
| King | ~52 rounds | 3255 m |
Important - Actual results vary with:
- Hook size
- Tension
- Fibre (cotton vs acrylic vs wool)
- Stitch density
Safe planning margin: Add 10–15% extra yarn
Estimate the yarn you'll need based on your project size, yarn weight, and stitch pattern.
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Discover how to crochet a growing square blanket worked continuously from the centre outward. A relaxing project ideal for any skill level.
Pattern Notes for Beginners
- Ch-3 counts as dc
- Always increase in corners
- Use stitch markers at corners
- Count stitches periodically
- Keep corners relaxed
- Always check gauge if size accuracy matters.
New to crochet? This beginner-friendly crochet blanket tutorial teaches you how to grow a blanket from a simple square using easy repeats and corner increases.
This blanket is worked:
- From the centre outward
- In joined rounds
- Without seams or joins
- Using consistent corner increases
- Corners maintain the square shape while sides expand evenly.
Time to Make Blankets
| Blanket | Time Estimate |
| Baby | 8–12 hours |
| Afghan | 20–30 hours |
| Double | 35–45 hours |
| King | 50–70 hours |
Depends on speed, tension, and stitch comfort.
US Stitch Terminology : Abbreviations
-
Crossed Double Crochet - cdc
-
Chain Space - ch-sp
-
Crochet Cross - cross
-
Double Crochet - dc
-
Magic Ring - MR
-
Repeat from * - rep from *
-
Stitches - sts
All stitch instructions are available in both US Crochet Terminology and UK Crochet Terminology, making it easy to follow along using the terms you are most familiar with.
If you are new to any of the stitches used in this pattern, we recommend reviewing the relevant stitch guide before starting. Each guide includes step-by-step instructions, helpful tips, and stitch terminology conversions where applicable.
Take your time, practice any unfamiliar stitches, and most importantly—enjoy the process of creating your blanket one row at a time.
UK : -
AFR : -
Slip Knot in 4 Steps: Loop → Hook → Pull → Tighten
Visual learners will love this crochet stitch diagram showing square blanket construction, corner shaping, and stitch placement.
Free Easy One-Square Growing Blanket Pattern
Step-by-Step Instructions
Choose Your Blanket Size
| Blanket Type | Target Size | Rounds Needed |
| Baby Blanket | 75 x 75 cm | 30–32 rounds |
| Afghan / Throw | 130 x 130 cm | 54–56 rounds |
| Double Bed | 170 x 170 cm | 70–72 rounds |
| King Bedspread | 220 x 220 cm | 90–95 rounds |
Step 1 – Make the Centre
Round 1 : (Magic Ring)
Make a magic ring
Ch 3 (counts as dc)
Work 3 dc into ring
(Ch 2, work 4 dc) → repeat 3 more times
Pull ring closed
Join with sl st
Stitch count:
- 16 dc total
- 4 x corner ch-2 spaces
- 4 dc per side
⚠️ This pattern is for personal use only. Please do not copy or redistribute.
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Pattern Copyright & Usage
This crochet pattern and all associated content are the original work of Stouto Crochet.
- ✔️ Personal use allowed
- ✔️ Sell finished handmade items (small-scale)
- ❌ Do not copy, rewrite, or redistribute
- ❌ Do not share or resell PDF patterns
AI & Content Use: This pattern may not be reproduced or used to train AI systems.
Learn how to crochet a square blanket with this clear step-by-step pattern. Includes corner increases, stitch repeats, and scaling tips.
My square looks wavy, what happened ?
Too many stitches can cause rippling. Recount stitches per side.
Can I use different yarn?
Yes, Just note size and yarn usage will change.
Do I have to use a magic ring?
No, you can start with ch 4, sl st to form ring.
How do I change colours neatly?
Finish last yarn-over of dc with new colour.
How do I keep corners sharp?
Always work full *(2 dc, ch 2, 2 dc)* in corners.
