Franken-spider man I released

The spider, so terrifying in appearance
In name it is cursed, no one
Pities, or sings of spiders in songs
Instead they are used, and killed
A misunderstood monster, captured
Cornered and to be killed.
Today I released that spider into the woods
Where the trillium is already in bloom,
It blends with the fallen clutter,
Not even a blight upon the beautiful garden,
Where I let loose a monster.