The One-Rectangle Cocoon Cardigan is a perfect project for true beginners venturing into crocheting garments. With a simple rectangle construction, this cardigan provides a comfortable fit and offers an easy introduction to crochet techniques. If you’re new to crochet and looking for a fun and straightforward project, this pattern will guide you through each step. Additionally, familiarizing yourself with easy patterns, such as a beginner-friendly cherry blossom crochet hair comb pattern, can build your skills further.
Skill Level
Beginner
This is an ideal project for beginners because it involves basic crochet stitches and simple construction methods. It’ll help you become comfortable with stitching and handling yarn, paving the way for more complex projects in the future.
Materials
- Worsted #4 or bulky #5 yarn
- 6-7mm crochet hook
- Tapestry needle
- Stitch markers
- Measuring tape
Abbreviations — US Terms
- ch – chain
- sl st – slip stitch
- sc – single crochet
- hdc – half double crochet
- dc – double crochet
- st(s) – stitch(es)
- sp – space
- ch-sp – chain space
- BLO – back loop only
- FLO – front loop only
Special Stitches
Half Double Crochet (hdc)
To work a half double crochet stitch, yarn over, insert your hook into the indicated stitch or space, yarn over again, pull through the stitch (you now have three loops on the hook), yarn over once more and pull through all three loops.
Gauge
Gauge is not essential for this project, but maintaining consistent tension throughout your work will ensure a nice fit for the cardigan.
Finished Size
The expected finished dimensions are approximately 36-44 inches for the forearm-to-forearm span and 30-38 inches for the back length. This project can be adjusted based on personal preference and body measurements.
Pattern Notes
- The cardigan is constructed in one large rectangle.
- Chain to your desired width.
- Work your stitches in rows.
- It is important to measure the length of the crochet piece as you go to ensure it meets your desired back length.
Crochet Instructions
Row 1
Begin by chaining to your target width based on the forearm-to-forearm distance, which is about 36–44 inches for adult sizes. Remember to use your gauge for a more accurate fit. Once you have your foundation chain, work a half double crochet (hdc) in the second chain from the hook and continue hdc across the chain. You should end this row with the appropriate number of hdc stitches depending on your foundation chain.
Row 2 and onwards
Ch1 (this turning chain does not count as a stitch), turn your work, and hdc across each subsequent row until you reach your desired height of 30–38 inches.
Total: Assume you have X hdc stitches per row, repeat this for Y rows until your rectangle meets the height requirement.
Shaping the Cardigan
Once you have completed the rectangle, lay it out horizontally on a flat surface. Fold the side sections inward symmetrically so that the edges meet the lower sections, thereby creating the arm openings. Seam these folded sides together for only 6–10 inches, leaving ample space for comfortable armholes.
Arm Openings
After you have seamed the sides and created armholes, join the yarn around each arm opening to begin working single crochet (sc) rounds. If you prefer fitted cuffs, evenly decrease during the first 1-2 rounds, then work in the back loop only (BLO) sc for your desired cuff length.
Collar
At the lower front edge of your cardigan, join the yarn to begin working the collar. You can choose to work either hdc or back-loop single crochet (BLO) continuously around the full front opening and back neck area for about 4-8 rows. This will create a wide, comfortable collar.
Your finished cardigan will be seamless with no separate front or back panels, and it will have no buttons, giving it a sleek and modern aesthetic.
As you continue to explore the world of crochet, consider creating accessories like a blue crochet belt pouch to complement your new cardigan.
Tips for the Best Result
- As you work on your cardigan, consistently check your rows for evenness to avoid any discrepancies in the final piece.
- Use stitch markers at the beginning of each row to better track your progress.
- Always measure the arm opening width to accommodate your own comfort and style preferences.
Common Mistakes
Uneven Stitching
If you notice your piece is pulling or ruffling, check your tension. Make sure you are maintaining consistent tension across all stitches.
Armholes Are Too Tight
When seaming the sides for the armholes, ensure you leave enough space for comfortable movement. If needed, adjust the seam length to fit your preference.
Finishing
After completing your cardigan, it’s important to weave in all your ends using a tapestry needle. This helps give your garment a polished look. Depending on the yarn you’ve chosen, blocking may enhance the finished appearance, so regard the yarn label for guidance on blocking techniques.
Care
For yarn care, always refer to the yarn label for specific washing instructions. Typically, hand washing and laying flat to dry are safe methods to preserve the integrity of your crochet pieces.
By following these detailed steps, you’ll create a comfortable and stylish One-Rectangle Cocoon Cardigan perfect for layering in any season. Happy crocheting!


