Plant Care Duckweed


Also known as

Common Purslane, Common Purslane, Little Hogweed and Pursley


Portulaca oleracea

How to care for Duckweed

💦 Water

How often to water your Duckweed

Water needs for Duckweed
0.5 cups
every 12

Duckweed needs 0.5 cups of water every 12 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 Duckweed

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size

☀️ Light

Finding light for Common Purslane in your home

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

Duckweed love being close to bright, sunny windows 😎.

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

Duckweed does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Duckweed

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

💡 FAQs
⭐ Difficulty Level

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!

Benefits of Growing Common Purslane →

Common Common Purslane Problems →

💦 Water Needs

Duckweed thrives in dry soil and should be watered sparingly. Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Common Purslane Water Frequency →

Common Purslane Root Rot →

☀️ Sunlight Needs

Duckweed requires abundant, bright and direct light. Place it less than one foot from a window to ensure it receives enough light to survive 💪. Select your region to see how the current weather in your area affects the placement in your home 🏡.

Common Purslane Light Requirements →

Common Purslane Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Duckweed is not safe to consume. If you, a family member, or a pet has ingested any amount of plant material contact Poison Control, US (800) 222-1222, or your veterinarian. If you have children, cats, or dogs in the home, we suggest keeping this plant out of reach.

💨 Humidity

Duckweed prefers dry environments. Providing extra humidity or misting your plant allows water to linger on leaves, which can create the perfect environment for harmful types of fungi.

Common Purslane Humidity Needs →

🪴 Soil

Duckweed is very sensitive to wet soil, so choose a potting soil that drains very well and doesn’t retain too much moisture. A good soil will have lots of perlite or vermiculite for drainage and some organic matter for nutrition. A few handfuls of perlite added to regular store-bought cactus soil will do the trick!

Best Soil Mix for Common Purslane →

When and How to Successfully Repot Common Purslane →

💩 Fertilizer

Duckweed grows very slowly and doesn’t require added fertilizer. Replacing your plant’s potting soil once a year should provide them with more than enough nutrition. Remember, plants get their energy from sunlight, not fertilizer!

How Much and When to Fertilize Common Purslane →

🌎 Native Region

Duckweed is native to Tropics and warm temperate regions worldwide.

🌸 Flowers

Duckweed produces flowers in the wild, but does not flower when kept as houseplants.

Common Purslane Flowers →

⬆️ ⬇️ Growth Pattern

Duckweed grows vertically and new growth will emerge from the top of the plant.

How and When to Prune Common Purslane →

🌦️ Growing Outdoors

USDA Hardiness Zone
Duckweed can be grown outdoors in USDA Hardiness Zones 10-11b. Find your local hardiness zone here.

Common Purslane Temperature Tolerance →

🌱 Propagation

The seeds of Duckweed can be used to grow new plants! After your plant flowers, any seeds that formed can be collected and germinated in potting soil.

How to Propagate Common Purslane →

🧐 Troubleshooting

When troubleshooting a sad-looking houseplant, start by checking for signs of distress in its leaves, such as yellowing, browning, or drooping, which can indicate overwatering or nutrient deficiencies.

Inspect the soil moisture; too dry or too wet soil can cause problems.

Ensure the plant is getting the right amount of light, as too much or too little can stress it.

Finally, consider environmental factors like temperature and humidity, and adjust care routines accordingly to revive your plant.

😖 Common Issues

Overwatering is a likely cause of issues with Duckweed. These plants are very sensitive to wet soil so if you notice your plant becoming squishy or translucent, overwatering is the likely culprit.

Cut your plant just past where the rot ends and allow it to callus over for a few days before replanting it in fresh, dry soil. Download Greg to make sure your plant never gets overwatered again!

Care Summary for Duckweed



Greg recommends:


0.5 cups every 12 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.

Trending in your area

Similar to Duckweed

Discover rare plants