Cold frames like this one help protect rooted cuttings and tender plants in colder months acting as a passive solar energy collector and reservoir.
During the day, the sun’s heats up soil and air; at night, the heat absorbed by the soil radiates out, keeping the plants warm.
Cold frames have others uses year round. In the spring, they make an ideal environment for hardening off annual flower and vegetable seedlings started indoors.
In summer, replacing the cover with shade, creates a great mini greenhouse for rooting cuttings. To learn more about this garden tool and how to build cold frames, read more at the link below…