Should I prune the leggy fronds?

You can trim back the most stretched fronds to encourage new, fuller growth. Do not remove more than one third of the plant at once.

Will my fern get bushier if I fertilize it?

Fertilizer helps, but light is the main factor for shape. Use a balanced liquid fertilizer at half strength once a month during spring and summer.

Marginal wood fern: leggy growth, causes and fixes

Check these first

Move the plant closer to a window with filtered light.
Check the soil moisture to see if it is drying out completely.
Rotate the pot every week to ensure even growth.

Likely causes

Insufficient light
Possible
How to tell: The fronds will grow long, thin, and pale as they reach toward the nearest light source. The plant will look sparse rather than lush.
What to do: Move the fern to a location with brighter, indirect light. Even though they like shade, they need enough light to maintain a compact shape.
Inconsistent watering
Possible
How to tell: The fronds may droop and lose their structure, making the plant look thin and weak. This happens when the soil dries out too much between waterings.
What to do: Stick to a strict schedule of watering every 3 to 7 days. Keep the soil consistently moist to the touch, like a wrung out sponge.

Leggy growth in other plants

Find out what's wrong with your marginal wood fern

The list above covers the usual causes. Pocket Botanist looks at a photo of your actual plant and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

When to worry

Worry if the stems are so weak they cannot support themselves. It is normal for the plant to grow slightly taller during the active growing season.

Stopping it coming back

Provide consistent, indirect light and keep the soil moisture steady. Rotate the pot regularly to encourage balanced growth.

Marginal wood fern: leggy growth? Check yours with a photo

Every plant is a little different. Take a photo of your marginal wood fern and Pocket Botanist tells you which cause is most likely, how serious it is, and what to try first. A few checks a day are free. Save the plant and you get care reminders timed for it.

Get the app · Or check it from a photo now, free

Questions people ask

Should I prune the leggy fronds?: You can trim back the most stretched fronds to encourage new, fuller growth. Do not remove more than one third of the plant at once.
Will my fern get bushier if I fertilize it?: Fertilizer helps, but light is the main factor for shape. Use a balanced liquid fertilizer at half strength once a month during spring and summer.

Why is my Marginal wood fern looking leggy and stretched out?