As a gardening and landscape gardening expert , I sympathize the importance of protecting fern from rough wintertime precondition . When it comes to check the temperature at which ferns should be brought inside , there are a few factor to consider .

In general , ferns are quite stalwart and can tolerate cool temperatures than many other plant . However , prolong picture to freeze out temperatures can be detrimental to their health . It ’s important to note that different fern species may have diverge cold leeway levels , so it ’s always a respectable idea to research the specific indigence of your fern variety .

That being said , a general guideline for bringing ferns inside is when the temperature drops below the 26 - 28 level Fahrenheit kitchen stove . This threshold is particularly relevant if you are facing northwest , where the inhuman wintertime air current often bollix . The northwest direction tend to be more open and susceptible to colder temperatures , so placing ferns up against the house can put up some protective cover from the chilling malarkey .

If the temperature falls even lower than 26 - 28 degree Fahrenheit , it would be advisable to bring the ferns indoors . fern are typically best suited to moderate temperatures and flourish in environs where the temperature wander between 60 - 75 degrees Fahrenheit . prolong exposure to freezing temperatures can lead to frost terms and even kill the ferns , specially if they are not acclimated to such conditions .

While wreak ferns indoors during extremely cold conditions is a good universal exercise , it ’s worth noting that some fern species are more cold - resistant than others . For case , certain fern varieties like the Christmas fern ( Polystichum acrostichoides ) or the Nipponese painted fern ( Athyrium niponicum ) may have bully inhuman tolerance and can withstand lower temperatures for curt periods .

Additionally , the specific microclimate of your garden can also bear on the dusty permissiveness of your ferns . Factors such as the amount of sunlight , shelter from wind , and insulation provided by nearby structures can influence a fern ’s ability to withstand insensate temperatures . respect your fern ’ reaction to cold weather condition over prison term will help you gauge their individual needs and set your winter care consequently .

Personal experience has teach me that it ’s always better to err on the side of caution when it come to protect ferns from freezing temperatures . If you ’re unsure about the stale tolerance of your fern or the rigour of the forthcoming wintertime , it ’s proficient to bring them indoors when the temperature strike down below the recommended threshold . This will ensure their safety and give them the good opportunity to thrive once spring get .

To summarize , ferns should be brought inside when the temperature dips below the 26 - 28 degree Fahrenheit range , specially if you are facing nor'-west where cold winter wind prevail . If the temperature fall even lower , it is advisable to fetch the ferns indoors to foreclose frost damage . However , it ’s crucial to consider the specific motivation of your fern specie and the unique condition in your garden to determine the best form of natural action .

Caroline Bates