How to Overwinter Boston Ferns?

To overwinter boston ferns, move them indoors to a cool, humid spot with bright, indirect sunlight. Boston ferns can provide lush, cascading greenery to your outdoor space during the warm months, but when the temperature drops, it’s time to move them indoors.

Overwintering boston ferns involves finding the ideal location where they can thrive and survive throughout winter. Sudden changes in temperature, drafts, and dryness can cause damage to ferns, so finding a cool and humid spot with bright, filtered light is essential. Boston ferns are susceptible to pests, so it’s a good idea to inspect them before bringing them inside and periodically throughout winter. Follow these tips to ensure your boston ferns thrive during their winter stay indoors and are ready to be moved back outside when the warm weather returns.

How to Overwinter Boston Ferns?


Preparing Boston Ferns For Overwintering

Preparing boston ferns for overwintering involves ensuring that the ferns are healthy and free of pests. The timeframe for overwintering usually lasts the length of time when temperatures drop and the ferns become dormant. Selecting healthy ferns involves choosing those with deep green leaves and no signs of discoloration.

Pruning and cleaning boston ferns should be done before bringing them indoors. Remove all dead fronds, cut back any overgrowth, and apply insecticide to prevent pests from coming indoors. Repotting and fertilizing boston ferns should also be done before overwintering.

A mix of potting soil and compost, combined with slow-release fertilizer, is best for healthy growth during the winter months. Maintain good airflow and moderate temperatures to keep the ferns healthy.

Choosing A Location For Overwintering Boston Ferns

Overwintering your boston ferns can be done both indoors and outdoors. Indoor overwintering requires a cooler spot with high humidity while outdoor overwintering requires protection from harsh winds. Temperature and humidity requirements include keeping the ferns below 60°f and increasing humidity levels through a humidifier or pebble tray.

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For light requirements, choose a spot with lower light conditions for indoor overwintering and shade for outdoor overwintering. Choosing containers with proper drainage and sizing is also essential to avoid overwatering and root rot. By carefully selecting the location, temperature, humidity, light, and containers for overwintering your boston ferns, you can keep these beautiful plants thriving throughout the winter season.

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Overwintering Techniques For Boston Ferns

Boston ferns are a popular houseplant that can survive the winter if cared for properly. Watering requirements vary, but typically they need less water in the winter. Over-watering can lead to root rot and other fungal diseases. To prevent pest infestations, keep the fern in a cool, humid area.

If you do notice pests, try using insecticidal soap or neem oil to treat them. Fungal diseases can be controlled by removing infected fronds and improving air circulation. During dormancy, cut back on fertilizing and allow the soil to dry slightly before watering.

With the right care and attention, your boston fern can survive the winter and continue to thrive for years to come.

Bringing Boston Ferns Out Of Overwintering

Boston ferns can be easily overwintered, but it is essential to know when they are ready to come out of overwintering. Signs of readiness include consistent soil moisture and green foliage. Gradually introduce the plant to sunlight to prevent leaf burn and shock.

While pruning is not necessary, it can encourage new growth and shape the plant. Fertilizing with a balanced formula can provide the necessary nutrients for healthy foliage. Keep in mind that over-fertilizing can lead to burnt tips and roots. By following these steps, your boston fern will thrive and be ready for the warm months ahead.


In a nutshell, overwintering boston ferns is a simple process that requires proper preparation and consistent care. Before the frost sets in, locate a suitable storage area with a consistent temperature, light, and humidity levels. Cut back the ferns, remove any damaged fronds, and remove loose soil from the pot.

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Water the plants less frequently, but ensure the soil stays slightly damp. Monthly feeding will help the ferns survive the winter and emerge healthy in the spring. With the right conditions and effort, your boston ferns can thrive for years to come.

Not only will you save money by overwintering your ferns, but you’ll also have lush foliage to brighten your home and garden throughout the year. Don’t hesitate to try it out and enjoy the benefits of successful overwintering.