"Sunflowers in the north are warm, gardenias in the south are cold" is a popular signature. Sunflowers growing in the north yearn for warmth, while gardenias growing in the south prefer cold. Their environment is not what they like.

Then "North Gardenia with South Gardenia" may be a comparison between "North Gardenia" and "South Gardenia". "Gu" means look. Gardenia is distributed in the south, also known as South Gardenia, which is cold-resistant. South planting, which appears in the north, seems to violate its distribution environment and is not conducive to its growth. In fact, it is precisely its preference.