Now and Then

Now and then the rose bough, blooming,
Hangs with roses, red or white;
Now and then the calla lily
Holds her cup to catch the light.

Now and then the frost flowers gather
On the wintry window pane;
Now and then the magic hoarfrost
Blossoms out in field and lane.

Now and then the poet, musing,
Has a mystic view and ken;
Then he plucks a poem flower:
But 'tis only^___Now and Then.