Plant Care Common Duckweed

Common Duckweed

About Common Duckweed

Common Duckweed is a super rare houseplant 🌿 that is isn’t challenging to grow and needs regular watering to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Common Duckweed likes soil that is well draining. You may want to supplement with a gentle, organic fertilizer throughout the peak growing season.

Common Duckweed belongs to the Lemna genus, and is native to Northern and Central America, and Temperate and Subtopical Africa.


Lemna minor

Also known as

Lesser Duckweed

How to care for Common Duckweed


How often to water your Common Duckweed

Water needs for Common Duckweed
0.5 cups
every 9

Common Duckweed 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 Common Duckweed

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 Common Duckweed in your home

Light needs and placement for plant Common Duckweed: 1ft from a window
1ft or less from
a window

Common Duckweed love being close to bright, sunny windows 😎.

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

Common Duckweed does not tolerate low-light 🚫.

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


How to fertilize Common Duckweed

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

Difficulty Level

Common Duckweed is generally easy to care for, though some plant parents report facing challenges with growing it. Check out the reviews down below to read more about their experiences!

Water Needs
Sunlight Needs
Growth Pattern
Growing Outdoors

Care Summary for Common Duckweed

Common Duckweed

Common Duckweed

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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