SKU: 27866254540

Cow's Horn Cactus - Euphorbia grandicornis

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Description

Cow's Horn Cactus - Euphorbia grandicornisEuphorbia grandicornis is commonly known as the cow's horn cactus, rhino thorn, or the big horn. It belongs to the Euphorbiaceae family and is native to a few places, including South Africa, Switzerland, and Kenya. Growing up to a height of 1. 5 6. 5 feet , this multi stemmed shrub goes dormant in winter. Growth Rate The Rhino Thorn is a relatively fast growing cactus, and it stays content in its position and with its soil for many years. Flowering

Euphorbia grandicornis is commonly known as the cow's horn cactus, rhino thorn, or the big horn. It belongs to the Euphorbiaceae family and is native to a few places, including South Africa, Switzerland, and Kenya. Growing up to a height of 1.5-6.5 feet , this multi-stemmed shrub goes dormant in winter.

Growth Rate

The Rhino Thorn is a relatively fast-growing cactus, and it stays content in its position and with its soil for many years.

Flowering

The Euphorbia grandicornis cow's horn cactus flowers are produced between spine pairs on newer growth, restricting them largely to the branch tips. These flowers are yellow and golden.

Watering and Feeding

Euphorbia grandicornis grows actively from the spring to the fall season, and that is when it should get the right amount of water. You can add a little bit of organic fertilizer to a young plant so that it grows healthily.

Soil

While any commercial succulent potting mix will keep the succulent happy, you can also create an organic Cow's Horn Cactus soil mix with 50% potting soil and 50% regular soil.

Hardiness

You will need to ensure that the air is at least 50 percent humid throughout the year since the plant has a hardiness zone of 10a to 11b. It can withstand temperatures up to -1.1°C.

Light

The Cow's Horn Cactus Euphorbia grandicornis light requirements include direct sunlight for at least six hours on a daily basis. If you plan to grow this plant indoors, you must place it near a window that gets lots of sunlight.

Propagation

Stem cuttings are the easiest way to propagate your Euphorbia grandicornis. Get a clean and sharp knife and collect the cuttings near the plant’s branching point.

Pinch out the tips of the plant occasionally as this will help encourage thicker growth. Other than pinching, plants need no particular grooming tasks.

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SKU: 27866254540

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Heidi Jacobsen
Carnegie, US
★★★★★ 3
Meh
Size: Large
Cute. But my golden retriever puppy demolished this in just a couple hrs
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Reviewed in the United States on May 8, 2026
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Amazon Customer
West Palm Beach, US
★★★★★ 4
Didn't last unfortunately
Size: Large
Purchased for my pup for Xmas. It's very cute, I love squirrels. Already pulled out the strings. He is a persistent chewer. Unfortunately had to toss.
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Reviewed in the United States on January 31, 2026
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Suze-Q
Carnegie, US
★★★★★ 5
Great toy
Size: Large
Well made
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Reviewed in the United States on December 16, 2025
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Rachel
Whiting, US
★★★★★ 5
Super Sturdy with hours of fun.
Color: Wild Duck, Hare, Squirrel & Alligator, Size: Small
I got the small ones that you cannot put a water bottle in. These toys have held up way better than expected. I am dog sitting a very rough with toys dog named Chunk. He tears up ever. Single. Toy my dog (Ted) has. I bought new ones just for chunk. These appealed to me with the no stuffing, They were cheaper, and have a squeaker. Everything chunk needed. They arrived on time and I thought I wasted my money. They were super soft, like too soft. They felt flimsy and weak. Like 5 minutes with chunk and they be dead. 2 hours with my dog and they would have a rip. So far 2 of them (I set two out) have lasted the whole weekend. The bunny looks very rough and disgusting, but no rips, the squeakers still work, and no random fluff everywhere. I am going to wash the bunny once chunk leaves. My very careful doggo Ted loves them too. He throws them up in the air and catches them, plays tug of war with them, and no rips. They are super sturdy. He can’t wait until Chunk leaves (chunk is 2 and Ted is 12-13) so he can play with them.
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Reviewed in the United States on April 26, 2026
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Amber B.
Louisville, US
★★★★★ 5
Loved it
Color: Brown/Wild Duck, Size: Large, Color: Brown/Wild Duck, Size: Large
He loved it so much, he destroyed it so we ordered another. I didn't realize that you can stick an empty water bottle inside. Again, the first one didn't last long, but he enjoyed it
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Reviewed in the United States on May 20, 2026

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