Plant Care Brittlestem Hempnettle

Brittlestem Hempnettle

Also known as

common hemp-nettle, brittlestem hempnettle and hemp nettle


Galeopsis tetrahit

How to care for Brittlestem Hempnettle


How often to water your Brittlestem Hempnettle

Water needs for Brittlestem Hempnettle
0.5 cups
every 9

Brittlestem Hempnettle 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.

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 Brittlestem Hempnettle in your home

Light needs and placement for plant Brittlestem Hempnettle: 3ft from a window
3ft or less from
a window

Brittlestem Hempnettle may have difficulty thriving, and will drop leaves 🍃, without ample sunlight.

Place it less than 3 feet from a south-facing window to maximize the potential for growth.

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


How to fertilize Brittlestem Hempnettle

Nutrient, fertilizer, and repotting needs for Brittlestem Hempnettle: 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 Brittlestem Hempnettle after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs

Care Summary for Brittlestem Hempnettle

Brittlestem Hempnettle

Greg recommends:


0.5 cups every 9 days


< 3ft 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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