I cried over beautiful things knowing no beautiful thing lasts.
The field of cornflower yellow is a scarf at the neck of the copper sunburned woman,
the mother of the year, the taker of seeds.
The northwest wind comes and the yellow is torn full of holes, new beautiful things
come in the first spit of snow on the northwest wind, and the old things go,
Connecting man and nature is a common practice in poetry. In this situation, a woman’s scarf is being compared to a yellow cornflower, also called a Chrysanthemum Segetum. Though very beautiful, they are considered a weed by some, which hints in on the incoming destruction. 
 
 Another possible darker image is of the scarf being a metaphor for a hanging rope to hint on the death of beauty  expressed in the previous stanza . This would suggest that beauty kills other beauty, for things get constantly replaced–a thought expressed the final stanza.
Autumn Movement