"Frost leaves are redder than February flowers" describes autumn.
"Spring Breeze Blows Qian Shan Green" comes from a couplet "Spring Breeze Blows Qian Shan Green, Southern Yan Spring Back to Home"
"Frost leaves are red in February flowers" comes from Tu Mu's Mountain Walk, and the whole poem is as follows:
Travel in the mountains
Author: Du Mu
In the distance, there are cold mountains, oblique stone paths and people in the depths of white clouds.
Stop and sit in the maple forest late, and the frost leaves are red in February flowers.