The half square triangle unit is probably the most commonly used patch in a quilt block -- well it is second only to the square. It is made simply with two triangles, filling up half the square each -- hence the name. Take a quick look through this website, or in any quilting magazine, and you will start to notice that this half square triangle, regardless of its size, is present in more quilts than not.
Free Quilt Block Pattern
We all love the song ... well at least I do, and did you know that there is a quilt block called Danny Boy too? Naturally, I chose to make my version is a variety of greens to keep with the Irish theme? (I wonder if they ever get tired of having green associated with "Irish"?)
The nine patch block is simple enough to make, using squares and half square triangles, but then you get the added interest in the centre with a square in the square patch.
I played around quite a bit with quilt settings for this block and found that I liked an on point layout best. The two sample quilts illustrated using this type of setting look entirely different though. What can you come up with?
More "Irish" Quilt Blocks
~ Irish Puzzle
~ Lucky Clover