Plant Care Blue Columnar Cactus

Blue Columnar Cactus

4.6 out of 5 (65 experiences)

Blue Columnar Cactus has a Survivor plant personality Survivor
Blue Columnar Cactus has a Easy to propagate plant personality 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

💦 Water

How often to water your Blue Columnar Cactus

Water needs for Blue Columnar Cactus
0.5 cups
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.

Calculate water needs of Blue Columnar Cactus

Water 0.5 cups every
12

Does your plant get direct sunlight?

Select the pot size

5"
☀️ Light

Finding light for Blue Columnar Cactus in your home

Light needs and placement for plant Blue Columnar Cactus: 1ft from a window
1ft or less from
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 🏡.

🪴 Nutrients

How to fertilize Blue Columnar Cactus

Nutrient, fertilizer, and repotting needs for Blue Columnar Cactus: 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 Blue Columnar Cactus after it doubles in size or once a year—whichever comes first.

💡 FAQs
⭐ Difficulty Level

Blue Columnar Cactus 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!


💦 Water Needs

Blue Columnar Cactus 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.


☀️ Sunlight Needs

Blue Columnar Cactus 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 🏡.

Blue Columnar Cactus Direct Sunlight Needs & Tolerance →


🐶 🐈 👶 Toxicity

Blue Columnar Cactus is not known to cause harm to humans or pets. Regardless, if you, a family member, a cat, or dog has ingested any plant material, please consult a doctor or a veterinarian.


💨 Humidity

Blue Columnar Cactus prefers dry environments. Providing extra humidity or misting your plant allows water to linger on leaves, which can create the perfect environment for harmful types of fungi.

Blue Columnar Cactus Humidity Needs →


🪴 Soil

Blue Columnar Cactus 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!


💩 Fertilizer

Blue Columnar Cactus 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!


🌎 Native Region

Blue Columnar Cactus is native to Central and South America.


🌸 Flowers

Blue Columnar Cactus produces flowers in the wild, but does not flower when kept as houseplants.


⬆️ ⬇️ Growth Pattern

Blue Columnar Cactus grows vertically and new growth will emerge from the top of the plant.


🌦️ Growing Outdoors

USDA Hardiness Zone
Blue Columnar Cactus can be grown outdoors in USDA Hardiness Zones 10-11b. Find your local hardiness zone here.

Blue Columnar Cactus Temperature Tolerance →


🌱 Propagation

Blue Columnar Cactus can be propagated by the stem method. To propagate:

  • Make a cut just above the node. The node is the break in the stem where the leaf emerges.
  • To get the cutting to root, you can either:
    • Place the cutting in water until roots emerge and are ~2” long and then transplant into well-draining soil, or
    • Place the cutting directly into well-draining soil and water when dry.

🧐 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 Blue Columnar Cactus. 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!


Care Summary for Blue Columnar Cactus

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

Blue Columnar Cactus has a Survivor plant personality Survivor 50
Blue Columnar Cactus has a Easy to propagate plant personality Easy to propagate 7
Blue Columnar Cactus has a Fast grower plant personality Fast grower 4
Blue Columnar Cactus has a Blooms easily plant personality Blooms easily 3
Blue Columnar Cactus has a Browns easily plant personality Browns easily 1
@JBgardens avatar
@@JBgardens
leaf-1 6 Plants
xp 96 XP
globe Ottawa, Ontario
02/21/2022

Seems happy during the winter in Canada (inside).

Survivor Survivor
@rwags avatar
@@rwags
leaf-1 60 Plants
xp 5,052 XP
12/12/2021

Has moved around a ton and is just super content. Hasn’t grown much tho

Survivor Survivor
@codiejagger avatar
@@codiejagger
leaf-1 9 Plants
xp 691 XP
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 Survivor
Madeline avatar
@Madeline
leaf-1 1 Plants
xp 32 XP
globe Chicago, IL
09/06/2021

Very easy to care for.

Survivor Survivor
Caitlin avatar
@Caitlin
leaf-1 5 Plants
xp 307 XP
globe Snodland, England
08/08/2021

It’s a cute plant, and super easy to maintain!

Survivor Survivor
@emmalynmeyer avatar
@@emmalynmeyer
leaf-1 2 Plants
xp 74 XP
globe Tempe, AZ
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)

Dannielle avatar
@Dannielle
leaf-1 8 Plants
xp 625 XP
globe Harpenden, England
07/20/2021

Be careful to not overwater & you’ll be ok

Dannielle avatar
@Dannielle
leaf-1 8 Plants
xp 625 XP
globe Harpenden, England
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 Survivor
@noekylie avatar
@@noekylie
leaf-1 6 Plants
xp 142 XP
globe Lexington, TX
07/06/2021

very very easy to take care of! never had any problems:)

Survivor Survivor
@Reillyfernandes avatar
@@Reillyfernandes
leaf-1 10 Plants
xp 1,385 XP
globe Cambridge, Ontario
06/30/2021

What a cool cactus

Survivor Survivor
@nostalg.iia avatar
@@nostalg.iia
leaf-1 68 Plants
xp 969 XP
06/19/2021

This cactus is a cool looking plant, hardy and great for windowsills or ledges near windows.

Survivor Survivor
@Charlemont avatar
@@Charlemont
leaf-1 0 Plants
xp 172 XP
globe Ringwood, England
05/27/2021

It’s just so cute and it’s my favourite cacti ☺️

Survivor Survivor
Andrew avatar
@Andrew
leaf-1 5 Plants
xp 150 XP
globe Merimbula, New South Wales
05/20/2021

Really cool blue cactus that will eventually produce big white blooms and palm size fruits

Survivor Survivor
Ethan avatar
@Ethan
leaf-1 1 Plants
xp 37 XP
globe Camas, WA
05/20/2021

He spiky

Survivor Survivor
Heather avatar
@Heather
leaf-1 2 Plants
xp 54 XP
globe Conway, SC
05/18/2021

Love it, so cute!

Survivor Survivor
Easy to propagate Easy to propagate
@bitchy_athena avatar
@@bitchy_athena
leaf-1 53 Plants
xp 1,039 XP
globe Chicago, IL
05/07/2021

easy to care for but doesn’t grow tall or wide fast without specific care

Survivor Survivor
@Mrs.Jones123 avatar
@@Mrs.Jones123
leaf-1 11 Plants
xp 2,968 XP
04/26/2021

Not a huge fan..... kind of boring

Juliette avatar
@Juliette
leaf-1 19 Plants
xp 112 XP
globe Wareham, England
04/25/2021

Very easy and doesn’t need much attention

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