In the hedgerows by the roads, once in a while you find a surprising and spectacular patch of icicles like this
|Icicles in the hedges in UK|
|More icicles in the hedges in UK|
and just a metre or two to each side the hedges are completely dry and free of ice.
It turns out that there is always a puddle of nearly-freezing water on the road and that it is constantly being splashed into the hedge by passing vehicles. Some of it freezes and forms icicles, and the remains that drip off might form icicles on the ground.