It was a quirk of light. Without it I would have missed the tiny ice garden on my window.
Among the little plants I spotted fern trees, maple leaves, thistle heads, shrubs and grass, perhaps an elm or maybe a beech. The biggest is less than a centimetre, not even half an inch.
The garden is growing on the outer pane of a double-paned window, facing north onto snow-draped spruce trees. Not sure when it took root — last night it was about -30C (-20F) so perhaps that was enough to sprout this grace and beauty.
Bumping up the blue levels on the photo created this fairyland effect.