Pumpkins planted in the open air are relatively dark in color because they get enough sunshine and natural wind and rain. If the pumpkin is planted in suitable temperature and humidity, the color will gradually turn dark yellow or orange yellow under the sunlight, which is more obvious than the pumpkin in the greenhouse. And at maturity, there will be brown spots, reflecting the color depth of pumpkin.

Pumpkins planted in greenhouses are generally light in color and relatively soft because they are less affected by sunlight and climate in greenhouses. Mature pumpkins will appear yellow or yellow-green, bright but relatively light.