Just before Christmas a customer asked me to crochet the letter H to go on a sweater for a “Harry Potter sweater”. After a couple of trial and errors, I came up with a design I liked and thought I would share it.

For those of you who are Harry Potter fans or know one, this would be an easy add-on to a blue sweater for a costume party, or Halloween party, or just for fun.


Materials needed:
H hook
tapestry needle
Yarn Bee – Fetching “Citrine”
some pins and an iron
needle and thread


A little note about the construction – We will work both of the vertical bars of the H, then we will connect them while working the horizontal bar. I have a few photos below the instructions to help you out a bit.

ch: chain
sl st: slip stitch
sc: single crochet

Vertical bars (Make 2):
Ch 34
Row 1: sl st in first 3 chs, then work 26 scs. You will leave some chs unworked. Ch 1 and turn (pic below).
Row 2-4: sc in each sc across. Do not work a sc in the slip stitches from previous row. Ch 1, turn. Do not ch 1 on Row 4 and do not fasten off (pic).

(Now for the top flares.)
Ch 4, sl st in the 2nd ch, work 1 sc in the next 2 chs, evenly work 4 sc across end of the bar, 1 sc in next 2 chs, sl st in last ch, Fasten off (pic).
On the other end: attach yarn opposite where the tail is, ch 4, sl st in 2nd ch, 1 sc in next 2 chs, evenly work 4 scs across end of the bar, work 1 sc in next 2 chs, sl st in last chain, FO (pic below).


 Some of those first chs will be left unworked, because they will be part of the flares on the letter.
Here we have chained 4 at the end of row 4.
 Here is what the finished flare looks like.
 On the other end, attach yarn OPPOSITE of the beginning tail.
Now for the horizontal bar…
Attach yarn on the 10th st from the top of the Left vertical bar (pic below). Ch 17. (We do not attach it to the other vertical bar yet).
Row 1: Sc in 2nd ch and across (16scs), sl st in the 11th sc on L vertical bar, just below where you started (pic below).
Row 2: Sc across, ch 1 and turn.
Row 3: Sc across, sl st in the 12th sc on L bar, FO leaving a tail to sew to R vertical bar.
 Attaching to 10th sc on the Left bar.
 Slip stitching in the 11th sc on the Left bar.
Time to sew! Your ending tail will be at the bottom of your horizontal bar, so starting at the 12th sc down on the Right side, attach the horizontal bar to the Right vertical bar using a whip stitch on the 12th, 11th, and 10th scs. Fasten off and weave in ends.


 To help myself, I put a safety pin on the top front of the side I wanted showing.
I didn’t take a photo of the next step, but after I sewed my H together, I steamed the letter a bit to help it lay flat. This will help a TON when you’re sewing it onto the sweater. For a great tutorial on the proper way to do this and for the difference between “steaming acrylic” and “killing acrylic”, Moogly has a good video tutorial.
After the H was no longer damp from the steaming, slightly killing, process, I pinned it to the sweater so it would stay put while I sewed it. I then sewed the letter to the sweater by hand and removed the pins.


I’d say it turned out pretty well, don’t ya think? My customer was definitely happy with it.

I hope you enjoyed this free pattern by CsqDesigns/CaseyCarrollArt!

I would love to read your comments in the space below. Thanks for checking it out!


Happy Crafting!
Casey 🙂

The Harry Potter “H” – Free Crochet Pattern
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