Spiny Pincushion Cactus
4.9 out of 5 (16 experiences)
Survivor
Fast grower
Also known as
red-headed irishman, Mammillaria, Cactus, Un Pico, Red Spiked Cactus, Red Headed Irishman, Red-Headed Irishman Cactus, Mammillaria pilcayensis, Mammillaria spinosissima., Mammillaria spinosissima ., Mammillaria Sipnosissima, Mammillaria spinosissima... and Mammillaria Spinossima
Taxonomy
Mammillaria spinosissima
Mammillaria
Cactaceae
Caryophyllales
How to care for Spiny Pincushion Cactus
How often to water your Spiny Pincushion Cactus
every 12
Spiny Pincushion 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 Spiny Pincushion Cactus in your home
a window
Spiny Pincushion Cactus love being close to bright, sunny windows 😎.
Place it less than 1ft from a south-facing window to maximize the potential for growth.
Spiny Pincushion Cactus does not tolerate low-light 🚫.
Select your region to see how the current weather in your area affects the placement of Spiny Pincushion Cactus in your home 🏡.
How to fertilize Spiny Pincushion 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 Spiny Pincushion Cactus after it doubles in size or once a year—whichever comes first.
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Spikes falling off #Mammillaria My cactus spikes are falling off at the top everywhere else is fine no signs of pets or damage what's happening 😭 also the pot is glass bit plastic
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Little black spots #Mammillaria I'm not sure what these little black things are around my cactus. Overall the cactus is really happy and doesn't seem like mold.
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Just started this app, and this is my new plant to the group.
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My red-headed irishman bloomed when i first got it a month or so back and i didn’t water it properly or kept it outside (i live in washington ) now that it’s sunny it’s been outside but the flowers aren’t blooming !
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Dry spots? Hi! Do any of you have an idea what might have caused these spots on my cacti? They are recent (during the past week I would say). It is just in this small area, very clustered. It has been warmer and sunnier the past week, could it be sunburn? (I thougt he wanted lots of sun🙈). But it is on the side, not really where the most sun would hit I think. Or is it some kind of disease? (Not sure how he could have gotten anything as he is standing in a closed room where nothing has changed the past 4 months). Or might he have gotten too wet after last watering?🙈 I water him aprox once a month. He is about to flower and I am a little sad I have made him sad😟 #cactusclique #cactus #cacti #plantsmakepeoplehappy #help #brownspots #Mammillaria
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How often should I repot my cacti, is it important? #Mammillaria
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Should I fertilize this cacti? #Mammillaria
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Can I repot a spiny pincushion while it's blooming? #Mammillaria Not pictured but my spiny pincushion has been slowly blooming over the past month and its flowers are just now opening up. Its roots have been trying to escape through the bottom of the plastic pot it's in for awhile and I'd really like to give it more space and a better pot than the one it came in. Will I do much harm to the plant if I repot it now? Should I wait until it's completed it's bloom cycle? Im just worried that waiting out such a slow cycle may be risking issues - it really wants more space to grow! Thanks in advance!
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Trying to get an exact ID on this cactus. Think it's mammillaria polythele but apparently those are rare and I bought this guy for 4 bucks at a Walmart so something doesn't add up but naturally the tag on it says nothing about species. Help? #Mammillaria
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Is my cactus labeled properly #Mammillaria
Care Summary for Spiny Pincushion Cactus
Spiny Pincushion 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 14
Fast grower 8
Easy to propagate 3
12/05/2021
Love this guy
Fast grower
Easy to propagate
Survivor
07/03/2021
Conversation starter, easy to care for
Fast grower
Survivor
06/21/2021
Fast Growing. No need to water every week. Every 10-15 days is enough.
Fast grower
06/07/2021
It is incredibly soft and can be pet! They are very easy to take care of and can take long periods without water!
Fast grower
Survivor
05/31/2021
I’ve had it for a long time, it gets ugly sometimes but it hangs in there.
Survivor
05/25/2021
I love Mammilaria omg this one is amazing
Survivor
Fast grower
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