Plant Care Northern willowherb

Northern willowherb

Also known as

Fringed willowherb, American willowherb, Slender willow herb and Northern willow herb


Epilobium ciliatum

How to care for Northern willowherb


How often to water your Northern willowherb

Water needs for Northern willowherb
0.5 cups
every 9

Northern willowherb needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Northern willowherb

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Northern willowherb in your home

Light needs and placement for plant Northern willowherb: 1ft from a window
1ft or less from
a window

Northern willowherb love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Northern willowherb does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Northern willowherb in your home 🏡.


How to fertilize Northern willowherb

Nutrient, fertilizer, and repotting needs for Northern willowherb: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Northern willowherb after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs
Growth Pattern

Care Summary for Northern willowherb

Northern willowherb

Northern willowherb

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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