This text comes from The Canadian Soldiers' Song Book, a historical songbook transcribed on Wikisource and reproduced from the pinned revision linked below.
My wild Irish Rose,
The sweetest flower that grows
You may search everywhere,
But none can compare
With my wild Irish Rose,
My wild Irish Rose,
The dearest flower that blows
And some day, for my sake,
She may let me take
The bloom from my wild Irish Rose.