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Euphorbia Polycantha

Fishbone Thistle

WOW! Beautiful plant, arrived perfect in less than 24 hours. Thank you!

Julie - June, 2026
Regular price £54.99
Regular price £69.99 Sale price £54.99
SALE | 21% OFF SOLD OUT
Plant height & pot size | Size Guide
FREE 1-2 DAY EXPRESS DELIVERY
Lisbon Pot | Sage Green - Ceramic Plant Pot
+£27.99
Ceramic Plant Pot (17 cm)
Lisbon Pot | Powder Blue - Ceramic Plant Pot
+£27.99
Ceramic Plant Pot (17 cm)
Como Pot | Ivory - Ceramic Plant Pot
+£49.99
Ceramic Plant Pot (17 cm)
Arley Pot | Bee - Ceramic Plant Pot
+£29.99
Ceramic Plant Pot (17 cm)
Como Pot | Turquoise - Ceramic Plant Pot
+£49.99
Ceramic Plant Pot (17 cm)
Lisbon Pot | Light Grey - Ceramic Plant Pot
+£27.99
Ceramic Plant Pot (17 cm)
Ebbi Pot | Dusky Pink - Ceramic Plant Pot
+£38.99
Ceramic Plant Pot (17 cm)
Vinci Pot | Grey - Ceramic Plant Pot
+£39.99
Ceramic Plant Pot (17 cm)
Sofia Pot | Grey Granite - Ceramic Plant Pot
+£26.99
Ceramic Plant Pot (17 cm)
Round Saucer | Terracotta - Plastic Saucer
+£3.99
Plastic Saucer (17 cm)
Lisbon Pot | Blush Rose - Ceramic Plant Pot
+£27.99
Ceramic Plant Pot (17 cm)
Round Saucer | Green - Plant Saucer
+£3.49
Plant Saucer (17 cm)
Orchid Pot | Transparent - Plastic Plant Pot
+£4.99
Plastic Plant Pot (17 cm)
Como Pot | Mint - Ceramic Plant Pot
+£49.99
Ceramic Plant Pot (17 cm)
Round Saucer | Black - Plastic Saucer
+£2.99
Plastic Saucer (17 cm)
Round Saucer | Graphite - Plastic Saucer
+£3.49
Plastic Saucer (17 cm)
Orchid Saucer | Transparent - Plastic Saucer
+£5.99
Plastic Saucer (17 cm)

RARE PLANT

You're lucky you found me!

Happy in both light & shade
Low water requirements
Express delivery service

Native to the mountains of Northern Africa, these captivating Fishbone Thistle succulents are sure to spark conversations with their undeniably tropical appearance, easy care nature and versatile potential. Their evergreen nature and leafless, spiny columns mean they can offer up inspiration & decorative beauty year-round, and if you're lucky you may even see yours produce some lovely yellow flowers in the Springtime as it matures! Perfect for gifting to a cacti-loving friend or family member, these are certain to fascinate nearly anywhere and everywhere they go. 

For information about a different size plant, change your selection above.

Average Plant Height
20-30 cm
Internal Pot Diameter
17 cm
Botanical Names
Euphorbia Polycantha
Other Names
Fishbone Thistle, Fishbone Cactus
Pet Friendly
Not pet friendly
Air Purifying
Not an air purifying plant
Water Requirements
Low water requirements
Light Requirements
Happy in both light & shade

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We have shipped over 350,000 houseplants to our happy customers. 

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Care Instructions

Each houseplant requires different levels of care so every order is shipped with a handy care guide. For a few quick tips on how to care for Fishbone Thistle follow me!

Need further help? We have lots of handy guides dedicated to Indoor Plant Care

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We only deliver the highest quality houseplants & indoor plants. We are so confident in our plants we give them a 14 day freshness guarantee.

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A captivating Fishbone Thistle Cactus with spiked, green columns.

Fishbone Thistle

£54.99 £69.99
Free delivery

Houseplant Size Guide

Plant height measurement: How we measure the height of our houseplants from pot to top

At Houseplant.co.uk, we want to ensure that you choose the perfect plant for your space. Here's how we measure our plants:

Plant Height:

Measured from the base of the nursery pot to the top of the plant, including the full length of the stem and foliage.

Pot Size:

Refers to the total width across the top of the pot.

Choosing the Right Size

To find the perfect fit, compare the diameter of your plant's grow pot to the opening diameter of your chosen decorative pot. Ensure the decorative pot is at least 1-3cm larger in diameter than the grow pot for easy insertion and removal.

Important Notes

  • Plant sizes are approximate and include the depth of the plant pot and roots, not just the height from the top of the soil.
  • If a specific plant size is not available, we may provide a larger plant at no additional cost to you.
  • All of our plants, unless otherwise stated are supplied in a nursery pot with the exception of air plants or lucky bamboo or otherwise listed in the product description.

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Based on 5800+
customer reviews.

350k+

Indoor Plants delivered
to our happy customers.

95%

Over 95% of orders are
delivered within 1-2 days.

100%

We check every plant to
ensure the best quality.

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Other Names For Fishbone Thistle

Euphorbia Polycantha, Fishbone Thistle and Fishbone Cactus.

Houseplant & Indoor Plant Care

Care Guide

Caring for your Fishbone Thistle is a breeze! Simply place it in a spot with plenty of bright, direct/indirect sunlight and water once the soil has fully dried. For a boost to growth, health & happiness, optionally feed once per month in Spring/Summer with diluted Cacti & Succulent Food.

Light & Water Requirements

I have Low water requirements and I am Happy in both light & shade.

House Plant Freshness Guarantee

Houseplant Freshness Guarantee

We only deliver the highest quality houseplants & indoor plants. We are so confident in our plants we give them a 14 day freshness guarantee.