For a Boston fern (Nephrolepis exaltata) to thrive indoors, it wants particular concerns in terms of watering. On this information, I’ll take you thru the fundamentals of when and the best way to water Boston Ferns at residence and the go-to technique I exploit for preserving my plant in optimum well being all year long.

When Ought to I Water a Boston Fern? Key Takeaways
Boston ferns are native to the humid jungles of tropical Africa and South America. Their soil have to be saved persistently damp for optimum plant well being. Throughout the rising season, water each 2 to three days with distilled, filtered, or rainwater when the highest inch of soil feels dry to the contact. Humidity can be maintained by means of misting or utilizing a pebble tray.
What are the Typical Water Wants of a Boston Fern?

Boston ferns all the time want barely moist soil to maintain them from drying out. Water Boston ferns extra commonly within the spring and summer season and fewer ceaselessly within the autumn and winter. The trick is to keep away from stagnant water within the potting vessel to make sure appropriate drainage.
To stop contamination from chemical compounds, use distilled, filtered, or rainwater. Boston ferns additionally want excessive humidity, which will be achieved by means of misting or utilizing humidifiers and pebble trays.
When Do I Know When a Boston Fern Wants Watering?
The simplest approach to test in case your Boston fern wants a drink is to check how dry the soil feels. I prefer to test this every day utilizing my fingertips. If the soil feels slightly bit dry, the fern wants water.
Moisture probes can be efficient when you’d relatively maintain your nails clear and supply a greater indicator of moisture content material deeper within the soil base.
The foliage is usually a extra drastic indicator. If the fronds are beginning to yellow, the plant is parched and desires a drink.
How Typically Ought to I Water a Boston Fern?
Boston ferns needs to be watered as usually as essential to maintain the rising medium barely damp. Relying in your local weather, this will contain watering wherever from each 2 to three days or as soon as every week.
Throughout the rising season, water at this frequency. Within the winter, I in the reduction of the frequency, and solely water the fern each couple of weeks as progress will naturally gradual throughout this era of dormancy.
What Kind of Water is Finest for Boston Ferns?

Like most varieties of ferns, Boston ferns will be susceptible to chemical compounds and salts in faucet water. To keep away from a sickly-looking plant, use rainwater if potential. If that’s not sensible, then use distilled or filtered water (that is what I do). The latter might be essentially the most sensible possibility for many Boston fern homeowners.
Be certain that any water you employ is at room temperature as a result of Boston ferns don’t like temperature extremes.
Easy methods to Water Boston Ferns
In case your Boston fern wants watering, comply with a number of easy steps to keep away from over or underwatering the plant.
- At all times use a pot that has drainage holes. Water the fern completely till water begins to drip out. Strive to not get any water on the fronds themselves. As a substitute, purpose for the soil across the base of the plant.
- To maintain humidity excessive, it’s price misting the fern each few days. Don’t get too liberal with the spray, although, as you wish to keep away from fully saturating the foliage. You can too place the fern’s nursery pot on prime of a pebble tray with some water in it. The water will evaporate and lift the humidity.
What to Do In Between Watering Cycles?

Commonly test your soil between waterings, particularly within the spring and summer season. Use your fingertip or a moisture meter to test if the highest of the rising medium is starting to really feel dry. This tells you if the fern is prepared for an additional watering cycle.
By no means permit a Boston fern to completely dry out. It is a killer for the plant.
For extra, see our in-depth information on the place to place Boston ferns within the residence for optimum care and Feng Shui advantages.
Overwatering and Underwatering Boston Ferns
Boston ferns are extremely susceptible to each overwatering and underwatering. Too little water will trigger the fern to dry out and die. An excessive amount of water will provoke root rot. Preserve an eye fixed out for:
Root rot
If a foul scent begins to return out of your Boston fern, test the roots. The roots are rotting if they seem brown, mushy, and smelly. Lower off affected roots and let the soil dry out a bit earlier than you resume watering.
Wilting fronds
That is normally a symptom of overwatering. If the fern’s foliage is drooping, however the soil remains to be moist, there’s an excessive amount of water within the soil. Let the soil dry out a bit, and alter your watering schedule.
Yellowing foliage
This might point out underwatering or overwatering. Should you see the leaves turning yellow or show brown tips about the fronds, test the soil along with your finger. If it’s soaking moist, keep away from watering till the soil dries out a bit. If the soil is dry, water the plant completely.
Easy methods to Water Propagated Boston Ferns
Boston ferns will be propagated by division or utilizing the operating shoots that develop. Whichever methodology you propagate, maintain the brand new plant’s soil moist however not waterlogged – simply as you’d for a mature plant.
Watering Boston Ferns After Repotting
Boston ferns usually want repotting each couple of years because the plant spreads. Giving the plant a fast water a few days earlier than repotting is a good suggestion. This makes transferring a few of the previous soil to the brand new pot simpler. As soon as it’s been repotted, give the fern an intensive drink.
Watering Boston Ferns FAQs:
How do I do know if my Boston Fern wants water?
Leaves that begin to curl, sag, or crisp up on the edges are frequent indicators that your Boston fern crops want watering.
How a lot water ought to I give my Boston Fern?
Water liberally till you see water operating into the saucer beneath the pot. The precise quantity will depend upon the Boston fern measurement and the potting container. Goal to saturate the soil, watering deeply so your entire soil base receives some moisture.
Ought to I mist my Boston Fern?
A delicate mist might help to hydrate the leaves and supply a level of humidity. Watch out to not saturate the leaves, although, as stagnant water on the floor can result in decay and fungal infections.
Can indoor Boston Fern crops get better from overwatering?
Boston Ferns can get better from overwatering when you’ve mitigated early and adjusted the watering cycles transferring ahead. Monitor intently over two weeks and observe for normal indicators of enchancment within the plant’s total well being.
Wrap Up
Boston ferns could seem fussy in terms of water. However by following a easy routine, you possibly can make sure that your fabulous fern will get the correct amount of water to really thrive.
Solely water when the soil feels barely dry, particularly within the spring and summer season. Cut back watering frequency within the winter. At all times use room-temperature distilled or filtered water.
Andrew is the Editorial Director at Petal Republic. He holds a BSc diploma in Plant Sciences and has skilled professionally at main floristry faculties in London and Paris. In amongst overseeing a worldwide editorial crew, Andrew’s a passionate content material creator round all issues flowers, floral design, gardening, and houseplants.