1/10

Cow's Horn Plant

5.0 out of 5 (1 experiences)

Fast grower

Survivor

About Cow's Horn Plant

Cow's Horn Plant is a super rare houseplant 🌿 that is isn’t challenging 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.

Plant parents describe this plant as a fast grower and being a survivor with only 15 being grown with Greg around the world. Check out the reviews below for more details!🌟

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

Cow's Horn Plant belongs to the Euphorbia genus, and is native to Southeast Africa.

⚠️ Cow's Horn Plant is extremely dangerous if consumed. 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 immediately. These plants are not recommended for homes with children, cats, or dogs.

Taxonomy

Scientific name

Euphorbia grandicornis

Genus

Euphorbia

Family

Euphorbiaceae

Order

Malpighiales

Also known as

Big Horn

How to care for Cow's Horn Plant

💦 Water

How often to water your Cow's Horn Plant

Cow's Horn Plant 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.

Water 0.5 cups every
12

Does your plant get direct sunlight?

No Yes

Select the pot size

☀️ Light

Finding light for Cow's Horn Plant in your home

Cow's Horn Plant love being close to bright, sunny windows 😎.

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

Cow's Horn Plant does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Cow's Horn Plant in your home 🏡.

🪴 Nutrients

How to fertilize Cow's Horn Plant

Nutrient, fertilizer, and repotting needs for Cow's Horn Plant: 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 Cow's Horn Plant after it doubles in size or once a year—whichever comes first.

Browse #Euphorbia

💡 FAQs

⭐ Difficulty Level

Cow's Horn Plant 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 Cow's Horn Plant →

Common Cow's Horn Plant Problems →

💦 Water Needs

Cow's Horn Plant 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.

Cow's Horn Plant Water Frequency →

Cow's Horn Plant Root Rot →

☀️ Sunlight Needs

Cow's Horn Plant 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 🏡.

Cow's Horn Plant Light Requirements →

Cow's Horn Plant Direct Sunlight Needs & Tolerance →

🐶 🐈 👶 Toxicity

Cow's Horn Plant is extremely dangerous if consumed. 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 immediately. Cow's Horn Plant is not recommended for homes with children, cats, or dogs.

Cow's Horn Plant Toxicity to Cats →

Cow's Horn Plant Toxicity to Dogs →

Cow's Horn Plant Toxicity to Humans →

💨 Humidity

Cow's Horn Plant 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.

Cow's Horn Plant Humidity Needs →

🪴 Soil

Cow's Horn Plant 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 Cow's Horn Plant →

When and How to Successfully Repot Cow's Horn Plant →

💩 Fertilizer

Cow's Horn Plant 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 Cow's Horn Plant →

❄️ Dormancy

It’s common for Cow's Horn Plant 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

Cow's Horn Plant is native to Worldwide.

🌸 Flowers

Yes, you may see your Cow's Horn Plant bloom with the right amount of sunlight and water.

Cow's Horn Plant Flowers →

🌦️ Growing Outdoors

USDA Hardiness Zone
Cow's Horn Plant can be grown outdoors in USDA Hardiness Zones 10a-11b. Find your local hardiness zone here.

Cow's Horn Plant Temperature Tolerance →

🌱 Propagation

The seeds of Cow's Horn Plant 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 Cow's Horn Plant →

🧐 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 Cow's Horn Plant. 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!