Worked sideways, Accretion makes effective use of short rows and stripes to created a striking arched pattern. Worked in DK weight yarn the can easily be adjusted for a range of sizes by changing needle size, gauge or yarn.

Two different Hat styles & brim options are included – beanie & bonnet.


Hat Description

Accretion is a sideways knit with a fitted crown. The brim is worked vertically downwards, and is either fitted for a beanie finished, or split and tapered for a bonnet style. It uses short row colourwork to create a nested arched motif within one panel, which is then repeated all around the Hat. It’s worked in garter stitch throughout.


Pattern Details


Yarn A: 127 [159, 186, 207] yd/117 [145, 171, 190] m
Yarn B: 96 [109, 122, 140] yd/88 [99, 112, 128] m
DK weight, single or plied yarn; tonal or high contrast solid, semi-solid or variegated yarns.

Needles & Notions

Pair 3.25mm [3.5mm] straight needles or size needed to obtain gauge
3.25mm crochet hook
Approx. 3yd/3m waste yarn
Tapestry needle

Sample Details

Shown in Skein Queen Crush DK (turquoise)[246yd/225m per 100g; 75% SW Merino, 25% Nylon] & Lambstrings Yarn Ewetopia DK (brown)[231yd/211m per 100g; 100% SW Merino]
Shown in size 24in/61cm on model with 23in/58.5cm circumference head


24 sts x 48 rows to 4in/10cm on 3.25mm needles
over Garter St.


To Fit Size: 18 [20, 22, 24] in/45.75 [50.75, 56, 61] cm
Finished size: 12 [14, 16, 18] in/30.5 [35.5, 40.75, 45.75] cm

Pattern Notes

Fit is determined by row gauge – if your gauge differs, adjust your gauge via needle size or yarn weight.
Two different Hat styles & brim options are included – beanie & bonnet.

About our Hat patterns

Each Woolly Wormhead pattern is a short workshop in PDF format. Each pattern is carefully developed and every effort is made to ensure that the instructions are as clear as possible. In addition, the patterns are all multi-sized, professionally edited, and professionally photographed. These patterns will not only teach you how to create your own beautiful knitted Hat, but will also teach you new skills and improve your knitting knowledge!

With each purchase you will receive an email with a download link to the primary PDF. This PDF includes the instructions to make the Hat, and also includes links to in-depth photographic tutorials and where available, supporting videos. These educational resources are provided to guide you through each technique so that you can learn new skills as you make your Hat, all at your own pace. There is also live support available via our forum, where we can answer any questions and provide help where needed.

Once payment clears you’ll receive an email with the download link and instructions - do check your Spam folder if it doesn't arrive promptly. The link will expire after 5 downloads. For further help with downloading and storing files, please visit our FAQ page.

All Woolly Wormhead tutorials, workshops and knitting patterns are colour-blind, neurodivergent, low-bandwidth and printer friendly. The standard PDF format is compact, with succinct and clear instructions that don't use colour beyond the photos on the front and back pages. In addition, some patterns are also available in an LVA format, that is large print and suitable for screen-readers. To see examples of how the patterns are laid out and presented, and please visit the pattern sample page.


Product Details

  • Accretion Hat knitting pattern
  • Designer: Woolly Wormhead
  • Technical Editing: Deb Bramham
  • Translation: Šárka Dvořáčková (CZ); Alessia Càmpera (IT)
  • ISBN: 978-9916-693-52-0
  • Copyright Date: 2024
  • Last Revision: March 2024
  • File Name: WW446KAccretion
  • PDF File Size: 1.46MB; 150dpi

Additional information


Colour Blind Friendly


Short Row Colourwork


Sideways, Worked Flat




Woolly Wormhead

Instructions Type

Written and Fully Charted




English, čeština, Italiano

Product Type

Single Pattern


Adult (21 to 22in), L Adult (23 to 24in), Graded by Gauge

Stitch Technique

Grafting, Short Rows

Yarn Type

Dip-Dyed, Gradient, Hand-Spun, Kettle Dyed, Semi-Solid, Solid, Space-Dyed, Variegated

Yarn Weight



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