Blue Columnar Cactus
4.6 out of 5 (65 experiences)
Survivor
Easy to propagate
Also known as
San Diego Cactus and Pilosocereus azureus
Taxonomy
Pilosocereus pachycladus
Pilosocereus
Cactaceae
Caryophyllales
How to care for Blue Columnar Cactus
How often to water your Blue Columnar Cactus
every 12
Blue Columnar Cactus 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
Finding light for Blue Columnar Cactus in your home
a window
Blue Columnar Cactus love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Blue Columnar Cactus does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Blue Columnar Cactus in your home 🏡.
How to fertilize Blue Columnar Cactus
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 Blue Columnar Cactus after it doubles in size or once a year—whichever comes first.
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Shrivelly cactus? So my #BlueColumnarCactus has been slightly puckered lately and so I thought that would resolve itself once I gave him a good drink, but that doesn’t seem to be the case. He almost looks more puckered than when I watered him, and you can still see the moisture in the pot. Is this just dehydration that will eventually fix itself with water and time, or is this something to be concerned about? #PlantsMakePeopleHappy #PlantAddict #cactus #SucculentLove #PlantCorner #SucculentSquad #Succulents
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Spots on cactus? I've had this cactus for a few years but just recently started getting into plants and figuring out their problems 😂 so now I'm curious what these marks are on my lil cactus. Only on that one side. Other side is fine.
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Good morning from Texas 💚 Anyone have some suggestions for whether or not I should keep Gates here inside or on the patio ? I appreciate it much ☀️ #PlantsMakePeopleHappy #NewGrowth #BlueColumnarCactus
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What type of pot should I transfer this to? #BlueColumnarCactus
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#cactusclique 2022 roll call on a bunch that once held fake plastic flowers. These managed to survive my ignorance!
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Hey my cactus has some small cuts on it. And some wear mold smelling white things growing out the dirt. Does anyone know what it is? 🫶🏼 #BlueColumnarCactus
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Hey, what type of pots do Blue Columnar Cacti like best? #BlueColumnarCactus
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So how much should i water it? #BlueColumnarCactus
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How was yours grilling? #BlueColumnarCactus
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Do cacti develop stress colors like other succulents? So, on this #WhatTheSuccWednesday it just happens to be a watering day for my #BlueColumnarCactus, Tom. I bottom water most of my plants, so when it was his turn, I picked him up from the little table he lives on, brought him to the kitchen counter, under the bright light over the sink, and saw this 🧐 I’ve never seen nor heard of cacti getting a pattern like this before. At first, I thought it was just a pattern being cast by the shadows of his little prickles, but it isn’t 🤨 I’m certain it wasn’t there when I got it, or even when I last watered him. He does spend 10-12 hours a day under a grow light. So, I have to know—is this normal? Good? Bad? What’s going on? 🌵👀 #CactusClique #Cactus #SucculentSquad #SucculentLove #Succulents #GregGang #Greggers #PlantsMakePeopleHappy #HappyPlants #PlantAddict #PlantTherapy #babevila
Care Summary for Blue Columnar Cactus
Blue Columnar Cactus
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.
What other plant parents say
Survivor 50
Easy to propagate 7
Fast grower 4
Blooms easily 3
Browns easily 1
02/21/2022
Seems happy during the winter in Canada (inside).
Survivor
12/12/2021
Has moved around a ton and is just super content. Hasn’t grown much tho
Survivor
09/18/2021
Very low maintenance, I've never repotted him in the 5 or so years I've had him and he's just fine (should probably get round to doing it though tbh). He's gone weeks without water before and was absolutely fine, now he gets watered once a week or so and seems happy enough
Survivor
09/06/2021
Very easy to care for.
Survivor
08/08/2021
It’s a cute plant, and super easy to maintain!
Survivor
07/25/2021
A little sensitive to company. I had three of these in a pot with two other cacti and only one of them survived 5 months. Also, their roots stay pretty small, so it is a little hard to keep them upright in any pot. Nevertheless, a joy to have around. Love my Mia (RIP Rachel and Renee)
07/20/2021
Be careful to not overwater & you’ll be ok
07/20/2021
As long as you don’t over water it it’s easy to look after, t to honk it came with pests so you have to be careful and know how to look for them but otherwise alright, looks really cute too
Survivor
07/06/2021
very very easy to take care of! never had any problems:)
Survivor
06/30/2021
What a cool cactus
Survivor
06/19/2021
This cactus is a cool looking plant, hardy and great for windowsills or ledges near windows.
Survivor
05/27/2021
It’s just so cute and it’s my favourite cacti ☺️
Survivor
05/20/2021
Really cool blue cactus that will eventually produce big white blooms and palm size fruits
Survivor
05/20/2021
He spiky
Survivor
05/18/2021
Love it, so cute!
Survivor
Easy to propagate
05/07/2021
easy to care for but doesn’t grow tall or wide fast without specific care
Survivor
04/26/2021
Not a huge fan..... kind of boring
04/25/2021
Very easy and doesn’t need much attention
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