What is the lowest temperature a Boston fern can tolerate?

One of the oldest plants in the world, Boston Ferns like bright but indirect sunlight and optimum temperatures of 60°F – 75°F /15°C – 24°C but will tolerate temperatures as low as 50°F /10°C.

Can a Boston fern survive a frost?

As temperatures begin to drop in mid to late fall, plants need to be covered or brought indoors on nights when a heavy frost or freeze is expected. Common ferns like this Boston Fern will not survive a hard frost or freeze.

When should you bring Boston ferns inside?

Before the first frost of the fall is the perfect time to bring potted ferns indoors for the winter. Here are a few tips to keep them healthy and happy. Hose down each plant to clean the foliage and then inspect closely for insects that might be hiding in the foliage.

Will a Boston fern survive outside?

Although Boston fern is often grown as a houseplant, it thrives outdoors in warm, humid climates in USDA zones 9 to 11. With adequate moisture, the plant may tolerate drier climates. Frost may kill the fern to the ground, but it will rebound in spring.

Can Boston ferns survive 40 degrees?

Boston ferns thrive in temperatures in the 60s and 70s but can tolerate an occasional blast of cold air of 40 to 50 degrees for a few hours.

When can you move ferns outside?

The best time to transplant ferns is in early spring, while still dormant but just as new growth begins to emerge. Potted ferns can usually be transplanted or repotted anytime but care should be taken if this is performed during its active growth period.

What temperature should I cover my ferns?

They grow best when temperatures reach no higher than 75 degrees during the day and 65 degrees at night. A temperature of 95 degrees or higher may kill a Boston fern. Outdoors they should be placed in a sheltered spot where the temperature does not get this hot.

How cold can ferns tolerate?

Considered perennial in U.S. Department of Agriculture plant hardiness zones 9 to 11, they may stay out all year where temperatures seldom drop below 45 degrees F, but must be brought indoors if threatened by frost.

When can I put my ferns outside?

How do you take care of a fern hanging basket outside?

Ferns in hanging baskets tend to dry out quickly and require more frequent watering, especially during the summer months. Be careful not to overwater during the winter. Feed a fern in a hanging container every month during spring and summer using a balanced, water soluble fertilizer mixed to half strength.

When can I put a Boston fern outside?

What is too cold for a fern?

If you live in any of the USDA zones 2 through 9, and you are growing hardy ferns, most will probably be fine outdoors in whatever temperatures your climate throws at you. On the coldest end of the scale, hardy ferns can survive temperatures down to minus 50 degrees Fahrenheit.

When is it too cold for Boston ferns outside?

How cold is too cold for Boston ferns? If their leaves turn yellow, the plants are not getting enough humidity. Boston ferns thrive in temperatures in the 60s and 70s but can tolerate an occasional blast of cold air of 40 to 50 degrees for a few hours.

How cold is too cold for Boston ferns?

Boston ferns thrive in temperatures in the 60s and 70s but can tolerate an occasional blast of cold air of 40 to 50 degrees for a few hours. What temperature is too low for ferns? Most ferns like an average room temperature of 65 to 75 degrees F during the day, up to 10 degrees cooler at night.

When is it too cold for ferns outside?

They don’t tolerate the cold all too well. Some ferns can handle temperature dips to the extremes (-45F), but Boston ferns are the opposite. If temperatures drop down to 40F or so, that’s the limit. It needs to be winterized by bringing it indoors, protected with a greenhouse, or possibly mulched. The absolute lowest temperature is 40F.

What temperature should you bring ferns inside?

You should bring ferns inside when the temperatures drop below 25° to 30° Fahrenheit (-3° to -1° Celsius). The USA hardiness rating for ferns specifies this. However, experienced gardeners recommend transferring your fern indoors at slightly warmer temperatures.