Plant Care Lesser Duckweed

Lesser Duckweed

Also known as

Common Duckweed


Lemna minor

How to care for Lesser Duckweed


How often to water your Lesser Duckweed

Water needs for Lesser Duckweed
0.5 cups
every 9

Lesser 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 Lesser 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 Lesser Duckweed: 1ft from a window
1ft or less from
a window

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

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

Lesser Duckweed does not tolerate low-light 🚫.

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


How to fertilize Lesser Duckweed

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

Difficulty Level

Lesser 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 Lesser Duckweed

Lesser Duckweed

Lesser 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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