Foto de stock - 05 January 2023, Saxony, Leipzig: In the Felgenträger family nursery, a gardener waters different colored horned violets in a greenhouse. The horned violet (Viola cornuta), with a growth height of 20 to 30 centimeters, is one of over 100 species and varieties of early bloomers 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