White Grows the Lily

A lullaby from an English mother to her son during the 100 years war. The first 4 lines were written for the TV show "Legend of the Seeker" based off of Terry Goodkind's books. One of the characters uses it as a lullaby for a small boy on the show, but its maddeningly incomplete!
I tried looking online to find out if it was traditional or if any one had further lyrics to it, and found nothing. So......I get to write the rest.
I took the "rose" and "lily" line as a metaphor for the House of Plantagenet of England and the House of Valois of France in the 100 years war. I wrote the rest of the song to be from the perspective of an English women with a young son dreading his recruitment into the wars between the two houses. It remains in the format of a lullaby, but is sung not so much to comfort her son as it is to comfort herself. Anyways, let me know what you think!
THE ROSE AND THE LILY
Lady Asrune Rowan
White grows the lily, Red grows the rose
Here lies my laddie, See how he grows
One day he'll leave me, To cross shadowed sea
Pray god protect him, keep him safe with me
The rose shows its wisdoms, from love lost on youth
Protector of passions and soilder of truth
For royal resplendence I bow to it's bloom
But thorns rest beneat it, and there lies his doom
White grows the lily, Red grows the rose
Here lies my laddie, See how he grows
Soon must he leave me, To cross shadowed sea
Pray god protect him, let him stay free
The lily knows little, but innocence scorned
On banner of blood shed for villians adorned
like pale ghosts in moonlight, I fear for their fate
to grow on a gravesite, may yet be too late
White grows the lily, Red grows the rose
Here lies my laddie, See how he grows
Now he must leave me, And cross shadowed sea
Pray god protect him, return him to me
This garden is weary, its soil is tolled
For deacades in termoil, its left bled for gold
My son is a child, but man he'll soon be
with red rose upon him, he'll die by lily
White grows the lily, Red grows the rose
Here lies my laddie, oh how the wind blows!
Now he has left me, to lie neath green lee
Pray god protect him, keep him safe for me