Foto de stock - 05 January 2023, Saxony, Leipzig: In the family nursery Felgenträger grows in a greenhouse different colored horned violets. The horned violet (Viola cornuta) with a growth height of 20 to 30 centimeters, belongs to the more than 100 species and varieties of early bloomers, which are grown for sale in the greenhouses on an area of 3000 square meters at 0-10 degrees. The unusually high outdoor temperatures are currently playing a positive role in heating the greenhouses, as less heating has been required in recent weeks. Nevertheless, the energy costs have increased a lot, as high costs are incurred in watering. Photo: Waltraud Grubitzsch/dpa. - Leipzig/Saxony/Germany