Petiola is worked sideways, using short rows for shaping and creation of the pattern. Large leaves are encased by line, alternating around the Hat. Worked in DK weight yarn the Hat can easily be adjusted for a range of sizes by changing needle size, gauge or yarn.

Featuring short-row colourwork, each of the Folineal Hats is knit sideways and grafted. This pattern is available individually, or as part of the Folineal collection

Hat Description
Petiola is a sideways knit gently slouchy Hat. It uses short row colourwork to create a motif of organic forms and lines within one panel, which is then repeated all around the Hat. It’s worked in garter stitch throughout and has a smooth crown.

Yarn
Yarn A: 194yd/178m; Yarn B: 68yd/62m
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 RiverKnits BFL DK in shade ‘Cairn’ (246yd/225m per 100g; 100% Superwash BFL) & HueLoco Merino DK in shade ‘Harvest’ (230yd/210m per 100g; 100% Superwash Merino)

Shown in size 22in/56cm on model with 23in/58.5cm circumference head

Size & Gauge
To fit size: 22in/56cm; use 3.25mm needles
Gauge: 24 sts x 48 rows to 4in/10cm over Garter St.
Finished sizes:
Circumference: 16in/40.75cm
Length: 9.25in/23.75cm

To fit size: 24in/61cm; use 3.5mm needles
Gauge: 22 sts x 44 rows to 4in/10cm over Garter St.
Finished sizes:
Circumference: 17.5in/44.5cm
Length: 10.25in/26cm

Pattern Notes
Sizing in this pattern is achieved through gauge. The sideways nature of this design creates a great deal of stretch, so do consider the negative ease. Changes in gauge or yarn weight will mean a change in the size of the Hat.

Skills required
Knit & purl sts, short rows, provisional cast-on, grafting

Pattern contents
Written and charted instructions; download links for photographic tutorials

Support
Do you need help with this pattern? We have a specific discussion thread in the Wormhead’s Hats group where you can ask any questions. I’m unable to answer emails or PMs about help with patterns.

Accessibility Statement
The PDF for this single pattern is colour blind accessible. It uses black text on a white background. Charts are in greyscale and do not rely on colour.

Published: September 2025
PDF file size: 1.2MB, image res. 150DPI
Product code: WW459KPetiola
ISBN: 978-9916-693-74-2
Technical editor: Deb Bramham