Sea Urchin Cactus 'Echinopsis eyriesii' Info - Shop at Planet Desert

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Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) in a small red pot with light pebbles, white-spotted ridges visible.
Overhead close-up of a Sea Urchin Cactus in a pot with light gravel, showing its ridged surface, white spines, and radial symmetry.
Close-up of Sea Urchin Cactus (Echinopsis eyriesii), a round green cactus with white spines in a red-brown pot filled with pebbles.
Round, dark green Sea Urchin Cactus (Echinopsis eyriesii) in a pot with light brown gravel, ridged with small white spines.
Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) with spine clusters in a brown gravel-filled pot, against a softly blurred background.
Close-up of Echinopsis eyriesii cactus showing green ridges and white areoles, with a soft yellow and orange blurred background.
Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) with vertical ridges in a red pot with pebbles, set against a blurred background.
An open Sea Urchin Cactus (Echinopsis eyriesii) bloom with pink and white petals and a yellow-green center against a sandy background.
Sea Urchin Cactus (Echinopsis eyriesii) with ribbed green stems, pink bloom, and closed bud in a pot on gravel, night-blooming.
A hand holds a pale pink Sea Urchin Cactus flower blooming on a long stem from a cactus in a black pot, with cacti in the background.
Green Sea Urchin Cactus (Echinopsis eyriesii) in a black pot with a large pale pink flower, set on gravel with foliage in the background.
Sea Urchin Cactus (Echinopsis eyriesii) in a black pot, blooming with a pale pink and white flower, surrounded by other cacti.
A round green Sea Urchin Cactus (Echinopsis eyriesii) with white tufts in a black pot with gravel, set against a blurred garden background.
Sea Urchin Cactus (Echinopsis eyriesii) with a large pale pink flower and closed bud in a pot, outdoors on a sunny day.
Sea Urchin Cactus (Echinopsis eyriesii) with a large pink flower and yellow center, beside other cacti in black pots on sandy ground.
Sea Urchin Cactus (Echinopsis eyriesii) in a pot with gravel, featuring a tall pink night-blooming flower and closed bud.
Sea Urchin Cactus (Echinopsis eyriesii) with two pink flower buds in a black pot, outdoors among gravel and greenery on a sunny day.
Top-down view of a green ribbed Sea Urchin Cactus (Echinopsis eyriesii) with white fuzzy areoles, in a black pot among soil and cacti.
A round green Echinopsis eyriesii cactus in a black pot with two tall pink flowers and small pups, with other cacti in the background.
A green, round Sea Urchin Cactus (Echinopsis eyriesii) with offshoots in soil and white pebbles; three tall upright stems.
Round green Sea Urchin Cactus with ridges and small brown buds in a white gravel pot, blurred greenery and orange tones in background.
Round green Sea Urchin Cactus (Echinopsis eyriesii) in a black pot, outdoors on gravel, with a tall stem and pale pink flower.
A round green Sea Urchin Cactus (Echinopsis eyriesii) in light gravel, with a tall stem and large pink flower blooming at the top.
A round green Echinopsis eyriesii (Sea Urchin Cactus) in a pot with white stones, blooming a pale pink flower, outdoors by a path.
Top view of a Sea Urchin Cactus with green ridges and brown fuzzy buds, planted in a pot with light-colored pebbles.
Top view of Echinopsis eyriesii (Sea Urchin Cactus) with a large pale pink flower blooming on gravelly ground, sun casting a shadow.
The Sea Urchin Cactus (Echinopsis eyriesii) in a pot with pebbles, showing a green stem and large pink blossom; gravelly background.
A green Sea Urchin Cactus (Echinopsis eyriesii) with buds and a tall pink flower in white gravel, set in a sunlit garden.
Top view of a Sea Urchin Cactus (Echinopsis eyriesii) with three pale pink flowers, surrounded by potted plants on sandy ground.
Top-down close-up of a blooming Sea Urchin Cactus (Echinopsis eyriesii) flower, with pink petals and white stamens in its pot.
Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) with a large pink and white bloom in a pebble-filled pot, blurred earthy background.
Close-up of blooming Echinopsis eyriesii (Sea Urchin Cactus) in a small pot with pebbles, featuring pink petals and yellow-white stamens.
Close-up of a Sea Urchin Cactus flower with light pink petals and a yellow center, its delicate details highlighted against a blurred background.
Small potted Sea Urchin Cactus (Echinopsis eyriesii) topped with a pale pink bloom, on wood with gravel and dry plants in back.
Sea Urchin Cactus (Echinopsis eyriesii) with a round form in a gravel pot, tall stem, and pale pink bloom, garden backdrop.
A small Echinopsis eyriesii cactus in a brown pot with white stones, showing a large pale pink bloom. Outdoor blurred green backdrop.
A small potted Echinopsis eyriesii cactus with a large pale pink flower blooming outdoors on wood, surrounded by gravel and greenery.
A potted Sea Urchin Cactus (Echinopsis eyriesii) with a large pale pink flower sits outdoors, greenery and blooms in the background.
Close-up of Sea Urchin Cactus (Echinopsis eyriesii) with a large pale pink flower blooming over beige gravel and a softly blurred background.
Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) in a small red pot with light pebbles, white-spotted ridges visible.
Overhead close-up of a Sea Urchin Cactus in a pot with light gravel, showing its ridged surface, white spines, and radial symmetry.
Close-up of Sea Urchin Cactus (Echinopsis eyriesii), a round green cactus with white spines in a red-brown pot filled with pebbles.
Round, dark green Sea Urchin Cactus (Echinopsis eyriesii) in a pot with light brown gravel, ridged with small white spines.
Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) with spine clusters in a brown gravel-filled pot, against a softly blurred background.
Close-up of Echinopsis eyriesii cactus showing green ridges and white areoles, with a soft yellow and orange blurred background.
Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) with vertical ridges in a red pot with pebbles, set against a blurred background.
An open Sea Urchin Cactus (Echinopsis eyriesii) bloom with pink and white petals and a yellow-green center against a sandy background.
Sea Urchin Cactus (Echinopsis eyriesii) with ribbed green stems, pink bloom, and closed bud in a pot on gravel, night-blooming.
A hand holds a pale pink Sea Urchin Cactus flower blooming on a long stem from a cactus in a black pot, with cacti in the background.
Green Sea Urchin Cactus (Echinopsis eyriesii) in a black pot with a large pale pink flower, set on gravel with foliage in the background.
Sea Urchin Cactus (Echinopsis eyriesii) in a black pot, blooming with a pale pink and white flower, surrounded by other cacti.
A round green Sea Urchin Cactus (Echinopsis eyriesii) with white tufts in a black pot with gravel, set against a blurred garden background.
Sea Urchin Cactus (Echinopsis eyriesii) with a large pale pink flower and closed bud in a pot, outdoors on a sunny day.
Sea Urchin Cactus (Echinopsis eyriesii) with a large pink flower and yellow center, beside other cacti in black pots on sandy ground.
Sea Urchin Cactus (Echinopsis eyriesii) in a pot with gravel, featuring a tall pink night-blooming flower and closed bud.
Sea Urchin Cactus (Echinopsis eyriesii) with two pink flower buds in a black pot, outdoors among gravel and greenery on a sunny day.
Top-down view of a green ribbed Sea Urchin Cactus (Echinopsis eyriesii) with white fuzzy areoles, in a black pot among soil and cacti.
A round green Echinopsis eyriesii cactus in a black pot with two tall pink flowers and small pups, with other cacti in the background.
A green, round Sea Urchin Cactus (Echinopsis eyriesii) with offshoots in soil and white pebbles; three tall upright stems.
Round green Sea Urchin Cactus with ridges and small brown buds in a white gravel pot, blurred greenery and orange tones in background.
Round green Sea Urchin Cactus (Echinopsis eyriesii) in a black pot, outdoors on gravel, with a tall stem and pale pink flower.
A round green Sea Urchin Cactus (Echinopsis eyriesii) in light gravel, with a tall stem and large pink flower blooming at the top.
A round green Echinopsis eyriesii (Sea Urchin Cactus) in a pot with white stones, blooming a pale pink flower, outdoors by a path.
Top view of a Sea Urchin Cactus with green ridges and brown fuzzy buds, planted in a pot with light-colored pebbles.
Top view of Echinopsis eyriesii (Sea Urchin Cactus) with a large pale pink flower blooming on gravelly ground, sun casting a shadow.
The Sea Urchin Cactus (Echinopsis eyriesii) in a pot with pebbles, showing a green stem and large pink blossom; gravelly background.
A green Sea Urchin Cactus (Echinopsis eyriesii) with buds and a tall pink flower in white gravel, set in a sunlit garden.
Top view of a Sea Urchin Cactus (Echinopsis eyriesii) with three pale pink flowers, surrounded by potted plants on sandy ground.
Top-down close-up of a blooming Sea Urchin Cactus (Echinopsis eyriesii) flower, with pink petals and white stamens in its pot.
Close-up of a Sea Urchin Cactus (Echinopsis eyriesii) with a large pink and white bloom in a pebble-filled pot, blurred earthy background.
Close-up of blooming Echinopsis eyriesii (Sea Urchin Cactus) in a small pot with pebbles, featuring pink petals and yellow-white stamens.
Close-up of a Sea Urchin Cactus flower with light pink petals and a yellow center, its delicate details highlighted against a blurred background.
Small potted Sea Urchin Cactus (Echinopsis eyriesii) topped with a pale pink bloom, on wood with gravel and dry plants in back.
Sea Urchin Cactus (Echinopsis eyriesii) with a round form in a gravel pot, tall stem, and pale pink bloom, garden backdrop.
A small Echinopsis eyriesii cactus in a brown pot with white stones, showing a large pale pink bloom. Outdoor blurred green backdrop.
A small potted Echinopsis eyriesii cactus with a large pale pink flower blooming outdoors on wood, surrounded by gravel and greenery.
A potted Sea Urchin Cactus (Echinopsis eyriesii) with a large pale pink flower sits outdoors, greenery and blooms in the background.
Close-up of Sea Urchin Cactus (Echinopsis eyriesii) with a large pale pink flower blooming over beige gravel and a softly blurred background.

Looking for a unique and eye-catching addition to your indoor plant collection? Look no further than the Sea Urchin Cactus, a stunningly beautiful evergreen perennial that's perfect for any garden or indoor space. Also known as Echinopsis eyriesii, this cactus boasts pure white or pink blooms that open at night and emit a sweet fragrance that fills the air. But this plant is more than just its appearance. 

The Echinopsis eyriesii is a fun and interesting species of the Echinopsis genus. It is a type of cactus that is easily identifiable by its ability to withstand cold temperatures and its large, night-blooming pink-white flowers. Due to its distinctive size and shape, sea urchin cactus is also frequently used in landscaping and is known as a night-blooming cactus.  If the weather is cool or cloudy, the flowers can stay open for two or more days. This unique easter plant blooms in the spring, and when it does, you will be treated to beautiful white flowers.

An interesting bit of Echinopsis eyriesii information is its clumpy growth habit, often known as a clump-forming species. The sea urchin cactus tends to lean to the right and produces pups on that side's base and the opposite side. 

Overall, this sea urchin cactus, Echinopsis eyriesii is an easy plant to care for and makes a great addition to any cacti collection! 

 

Watering Needs 

This sea urchin cactus plant can withstand droughts and doesn't need to be watered frequently to survive. In reality, Echinopsis cacti are acutely susceptible to overwatering and are vulnerable to root rot if overly wet. Between waterings, let the soil completely dry out, and if in doubt, give it a little more time before watering again.

Remember that cacti in the desert can go for weeks or even months without water, so water them sparingly during their rest phase and moderately during their active growing season. 

  

Light Requirements 

If you're looking to grow a healthy and thriving sea urchin cactus plant, you'll need to provide it with plenty of bright, indirect light. When grown as a houseplant, it should be placed in the sunniest spot in your home to receive the six to eight hours of bright sunlight that it needs each day.

This usually means placing your sea urchin cactus plant in a south or west-facing window or using a grow light to provide supplemental light. However, it may experience stunted growth, curled leaves, and faded colors, even though it can survive in low light. 

  

Optimal Soil & Fertilizer Needs 

Are you ready to take your Echinopsis eyriesii (Sea Urchin Cactus) plant game to the next level? Then listen up, because this is important! When it comes to choosing the right soil and fertilizer for your adorable cacti, you need to be extra cautious and use the right kind of soil.  Moisture can be a real killer, leading to root and stem rot in no time. But fear not, my fellow green thumbs! Planet Desert has got your back with our specialized cactus potting mix that includes 10 natural substrates with organic mycorrhizae, perfect for promoting healthy roots and happy plants. 

Organic or 100% natural fertilizers are the best choice, as they last longer and keep your soil alive by adding other beneficial compounds and microbes that encourage plant health and nutrient absorption. So, skip those harsh chemicals and give your cacti some love with a good natural fertilizer! 


Hardiness Zones & More 

Sea urchin cacti are some of the hardiest plants around, tolerating cold temperatures down to 27°F. They're also heat-loving and can withstand humidity up to 115°F. Some resources say that they're even cold-tolerant down to 20°F, but this is doubtful.  Your Echinopsis eyriesii can be grown outdoors in USDA zones 8–12 and can survive low winter temperatures as long as the compost is not wet. 

So, if you're looking for a tough plant that can handle just about anything, the sea urchin cactus Echinopsis eyriesii is a great choice! 

Bloom Season

Late spring - early summer

Flower Color

Nocturnal--pure white--dark green--pink

Growth Rate

Slow

Hardiness Zone

9--10--11--12

Mature Size

6-11 in. tall--4-6 in. wide

Plant Type

Ornamental cactus plant

Resistance

Extremely drought-tolerant--pest resistance

Sun Exposure

Full sun (6+ hrs.)--Partial shade (3–6 hrs. sun)

Watering Needs

Moderate
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Pest & Common Problems of Echinopsis Plants

Growers Quick Reference Guide - Key Features

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Sea Urchin Cactus - Echinopsis eyriesii

sku: 2136

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$ 27.99
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Height: 6"-8"
Diameter: 7"-9"
Height: 6"- 9"
Diameter: 7"-10"

Please note: All Landscape Ready plants that are in a 6-inch pot or larger WILL NOT come with a pot as it will be shipped bare root.

Please note: Our large plants are many years old, and as a result, they might have minor scaring but will arrive 100% healthy and looking great.

Please note: Our large plants are shipped bare root. They are also many years old, and as a result, they might have minor scaring but will arrive healthy and looking great.

Please note: All perennial drought tolerant plants 6 inch and larger plants will be shipped bare root. Before sending perennial plants, we often trim the leafy parts and remove flowers or buds. This helps them survive shipping and adjust to transplanting better.
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Any plant that is 6" and larger that is not in our Houseplant category will be shipped bare root (without a pot).

What makes us different is the passion and the attention to detail in all we do here at Planet Desert. We are confident in the quality of our products. That’s why all our plants have a 100% satisfaction guarantee.

If you are not 100% satisfied with your purchase, you can return the product and get a refund or exchange it for another one — similar or not. Shipping charges may apply.

You can return a product for up to 14 days from the date of purchase. Please submit photos with your order number to info@planetdesert.com to initiate your return. Shipping fees may apply.

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  • Description
  • Key Plant Features

Looking for a unique and eye-catching addition to your indoor plant collection? Look no further than the Sea Urchin Cactus, a stunningly beautiful evergreen perennial that's perfect for any garden or indoor space. Also known as Echinopsis eyriesii, this cactus boasts pure white or pink blooms that open at night and emit a sweet fragrance that fills the air. But this plant is more than just its appearance. 

The Echinopsis eyriesii is a fun and interesting species of the Echinopsis genus. It is a type of cactus that is easily identifiable by its ability to withstand cold temperatures and its large, night-blooming pink-white flowers. Due to its distinctive size and shape, sea urchin cactus is also frequently used in landscaping and is known as a night-blooming cactus.  If the weather is cool or cloudy, the flowers can stay open for two or more days. This unique easter plant blooms in the spring, and when it does, you will be treated to beautiful white flowers.

An interesting bit of Echinopsis eyriesii information is its clumpy growth habit, often known as a clump-forming species. The sea urchin cactus tends to lean to the right and produces pups on that side's base and the opposite side. 

Overall, this sea urchin cactus, Echinopsis eyriesii is an easy plant to care for and makes a great addition to any cacti collection! 

 

Watering Needs 

This sea urchin cactus plant can withstand droughts and doesn't need to be watered frequently to survive. In reality, Echinopsis cacti are acutely susceptible to overwatering and are vulnerable to root rot if overly wet. Between waterings, let the soil completely dry out, and if in doubt, give it a little more time before watering again.

Remember that cacti in the desert can go for weeks or even months without water, so water them sparingly during their rest phase and moderately during their active growing season. 

  

Light Requirements 

If you're looking to grow a healthy and thriving sea urchin cactus plant, you'll need to provide it with plenty of bright, indirect light. When grown as a houseplant, it should be placed in the sunniest spot in your home to receive the six to eight hours of bright sunlight that it needs each day.

This usually means placing your sea urchin cactus plant in a south or west-facing window or using a grow light to provide supplemental light. However, it may experience stunted growth, curled leaves, and faded colors, even though it can survive in low light. 

  

Optimal Soil & Fertilizer Needs 

Are you ready to take your Echinopsis eyriesii (Sea Urchin Cactus) plant game to the next level? Then listen up, because this is important! When it comes to choosing the right soil and fertilizer for your adorable cacti, you need to be extra cautious and use the right kind of soil.  Moisture can be a real killer, leading to root and stem rot in no time. But fear not, my fellow green thumbs! Planet Desert has got your back with our specialized cactus potting mix that includes 10 natural substrates with organic mycorrhizae, perfect for promoting healthy roots and happy plants. 

Organic or 100% natural fertilizers are the best choice, as they last longer and keep your soil alive by adding other beneficial compounds and microbes that encourage plant health and nutrient absorption. So, skip those harsh chemicals and give your cacti some love with a good natural fertilizer! 


Hardiness Zones & More 

Sea urchin cacti are some of the hardiest plants around, tolerating cold temperatures down to 27°F. They're also heat-loving and can withstand humidity up to 115°F. Some resources say that they're even cold-tolerant down to 20°F, but this is doubtful.  Your Echinopsis eyriesii can be grown outdoors in USDA zones 8–12 and can survive low winter temperatures as long as the compost is not wet. 

So, if you're looking for a tough plant that can handle just about anything, the sea urchin cactus Echinopsis eyriesii is a great choice! 

Bloom Season

Late spring - early summer

Flower Color

Nocturnal--pure white--dark green--pink

Growth Rate

Slow

Hardiness Zone

9--10--11--12

Mature Size

6-11 in. tall--4-6 in. wide

Plant Type

Ornamental cactus plant

Resistance

Extremely drought-tolerant--pest resistance

Sun Exposure

Full sun (6+ hrs.)--Partial shade (3–6 hrs. sun)

Watering Needs

Moderate
Attribute Value
Bloom Season Late spring - early summer
Botanical Name Echinopsis eyriesii
Common Name Sea Urchin cactus
Dormancy Winter
Family Cactaceae
Flower Color Nocturnal, pure white, dark green, pink
Genus Echinopsis
Growth Habit Clumped
Growth Rate Slow
Hardiness Zone 9, 10, 11, 12
Mature Size 6-11 in. tall, 4-6 in. wide
Native Area Southern Brazil, Argentina
Plant Type Ornamental cactus plant
Propagation By seed, stem cuttings
Resistance Extremely drought-tolerant, pest resistance
Soil PH 6.5, Acidic, Neutral
Soil Type specialized cactus potting mix
Special Features Night blooming flowers
Sun Exposure Full sun (6+ hrs.), Partial shade (3–6 hrs. sun)
Toxicity Toxic for humans, toxic for pets
Watering Needs Moderate

Pest & Common Problems of Echinopsis Plants

Growers Quick Reference Guide - Key Features

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