As a gardening and landscaping expert, I have encountered various situations where ferns need to be protected from cold temperatures. Ferns are generally more delicate and sensitive to cold weather compared to other plants. The ideal temperature range for leaving a fern outside is typically between 28 to 32 degrees Fahrenheit (-2 to 0 degrees Celsius). However, it’s important to consider the direction your porch faces, as it can impact how low the temperature can drop and affect the fern’s well-being.
If your porch faces northwest, which is the direction of cold winter winds, it is crucial to take extra precautions to ensure the fern’s survival in lower temperatures. In such cases, if the temperature drops below the recommended range of 26-28 degrees Fahrenheit (-3 to -2 degrees Celsius), it is advisable to place the ferns up against the house or a sheltered area.
By positioning the ferns closer to the house, you provide them with some protection against the harsh cold winds. The structure of the house can act as a barrier, blocking the direct impact of the cold air and reducing the risk of frost damage to the ferns. This sheltered placement helps to create a microclimate that can keep the temperature slightly higher than the surrounding area.
In my personal experience, I have found that ferns placed against the house during colder periods have a better chance of survival compared to those left exposed to the elements. This method has proven effective in protecting the ferns from freezing temperatures and maintaining their health.
It’s important to note that different fern species may have varying cold tolerance levels. Some ferns may be more resilient and withstand lower temperatures, while others may be more susceptible to damage. It’s always a good idea to research the specific fern species you have and understand its cold tolerance to provide the best care.
While ferns can tolerate temperatures between 28 to 32 degrees Fahrenheit when sheltered, the direction your porch faces plays a role in determining how low the temperature can drop. If your porch faces northwest, placing ferns up against the house or in a sheltered area is recommended when the temperature falls below the range of 26-28 degrees Fahrenheit. By doing so, you create a protective barrier against cold winds and increase the chances of the ferns surviving the winter.
