STEM Cardigan by Allison Jane

STEM Cardigan

November 2018
Aran (8 wpi) ?
17 stitches and 22 rows = 4 inches
in St st on larger needle; 15 sts and 37 rows = 4" in brioche patt on larger needle.
US 8 - 5.0 mm
US 10½ - 6.5 mm
1528 - 2292 yards (1397 - 2096 m)
20 (22¾, 24¾, 27½, 30¼)" back width. Cardigan shown measures 22¾" on model with 34" bust.
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This pattern is available from for $7.99.

The STEM Cardigan is a cozy, oversized brioche cardigan with cables that mimic stem and leaf structures. We decided to go one step further with the theme, referencing the STEM (science, technology, engineering, and mathematics) programs responsible for leading the next generation into science and technology higher education and careers.

Difficulty Level Intermediate

Finished Size 20 (22¾, 24¾, 27½, 30¼)“ back width. Cardigan shown measures 22¾” on model with 34” bust.

Yarn Plymouth Yarn Homestead Tweed (90% wool, 10% Donegal; 191 yd / 3½ oz): #0529 marsh, 8 (9, 10, 11, 12) skeins.

Needles Sizes 8 (5 mm) and 10½ (6.5 mm): 40” circular and set of double-pointed. Adjust needle size if necessary to obtain the correct gauge.

Notions Markers; 2 cable needles; stitch holders; tapestry needle.

Gauge 17 sts and 22 rows = 4” in St st on larger needle; 15 sts and 37 rows = 4” in brioche patt on larger needle.


  • The body of this cardigan is worked back and forth in one piece to the underarm, then divided for working the fronts and back separately. Stitches for the sleeves are picked up around the armhole and the sleeves are worked in the round from the top down with a short-row sleeve cap.
  • A circular needle is used to accommodate the large number of stitches.
  • In brioche stitch, when counting stitches, each slipped stitch with its companion yarnover counts as one stitch. When counting rows, one visible row counts as two rows.
  • Slip stitches purlwise.