Boston Fern Winter Care - When to bring your boston ferns back out. In usda hardiness zones 9 to 11, boston ferns can be grown outdoors year. Just make sure you bring those pots indoors before a harsh frost. How do i protect my boston ferns from frost? Web it is normal! Preferably on a day where temperatures are still warm (60+), completely saturate each. Web hose down the plant: Web how to overwinter a boston fern. Boston ferns can only survive.
How do i protect my boston ferns from frost? Just make sure you bring those pots indoors before a harsh frost. Boston ferns can only survive. Web it is normal! In usda hardiness zones 9 to 11, boston ferns can be grown outdoors year. Web hose down the plant: When to bring your boston ferns back out. Preferably on a day where temperatures are still warm (60+), completely saturate each. Web how to overwinter a boston fern.