Plant Care Cancer Weed

Cancer Weed

About Cancer Weed

Cancer Weed is a popular houseplant 🌿 that is easy to grow and needs very little water to thrive. They do best in long-lasting, direct light ☀️ and should be less than 1 foot from a window.

Cancer Weed likes soil that is extremely well-draining. Your plant shouldn't need added fertilizers if you repot each time it doubles in size.

Cancer Weed belongs to the Euphorbia genus, and is native to Europe to the Western Himalayas, and the Mediterranean to Somalia.

⚠️ Cancer Weed 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.

Taxonomy

Euphorbia peplus
Euphorbia
Euphorbiaceae
Malpighiales

Also known as

Milkweed, Petty spurge and Radium weed

How to care for Cancer Weed

💦 Water

How often to water your Cancer Weed

Water needs for Cancer Weed
0.5 cups
every 12

Cancer Weed 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 Cancer Weed

Water 0.5 cups every
12

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Cancer Weed in your home

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

Cancer Weed love being close to bright, sunny windows 😎.

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

Cancer Weed does not tolerate low-light 🚫.

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

🪴 Nutrients

How to fertilize Cancer Weed

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

Browse #Euphorbia
💡 FAQs
⭐ Difficulty Level

Cancer Weed is generally considered an easy-to-care-for plant and makes a great choice for beginners!

Benefits of Growing Cancer Weed →

Common Cancer Weed Problems →


💦 Water Needs

Cancer Weed 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.

Cancer Weed Water Frequency →

Cancer Weed Root Rot →


☀️ Sunlight Needs

Cancer Weed 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 🏡.

Cancer Weed Light Requirements →

Cancer Weed Direct Sunlight Needs & Tolerance →


🐶 🐈 👶 Toxicity

Cancer Weed 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

Cancer Weed enjoys lots of humidity. Provide humidity for your plant by watering regularly and thoroughly, since plants absorb most water through their root system rather than their leaves. They may also benefit from being placed next to a humidifier.

Cancer Weed Humidity Needs →


🪴 Soil

Cancer Weed 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 Cancer Weed →

When and How to Successfully Repot Cancer Weed →


💩 Fertilizer

Cancer Weed 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!


❄️ Dormancy

It’s common for Cancer Weed to go dormant in the wintertime and you may notice their growth slow down. Waterings should be spaced out more during this time.


🌎 Native Region

Cancer Weed is native to Worldwide.


⬆️ ⬇️ Growth Pattern

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

How and When to Prune Cancer Weed →


🌱 Propagation

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


🧐 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.


Care Summary for Cancer Weed

Cancer Weed

Cancer Weed


Greg recommends:

Water

0.5 cups every 12 days

Placement

< 1ft from a window

Nutrients

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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