I tested Eremorange in an unheated greenhouse this winter and it was undamaged and started growing without any problems
Inside the greenhouse there were many freezing nights during the winter, worst was one week with 5 consecutive days (temperature °C, minimum in °F
14,3) : -7,5|
- 9,8 | -8 | -7 | -7,5
Eremorange was more hardy than other plants in the greenhouse:
Sudachi - some leaf damage,
SP Urban - some leaf and twig damage,
Citrumelo hybrid seedling - lost almost all leaves,
Clem-Yuz 2-2 lost almost all leaves and some twigs
N1 Tri Voss hybrid seedling - lost most of the leaves and twigs