Wow, nice! How tall is that? In the photo it doesn't look very tall but in the video it looks massive, especially compared to the other cacti in the area.
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The Cactus Thread
- Thread starter Zigs
- Start date
This thread features a comprehensive discussion on growing, identifying, and propagating cacti and succulents, highlighting community observations, practical troubleshooting, and individual species behavior.
- Cold Hardiness Limits: Community members noted that several species, including Oreocereus celsianus and cold-tolerant Echinocereus varieties, can survive extreme freezing temperatures down to 0°F (-18°C) as long as their soil remains completely dry throughout winter.
- Water Therapy Propagation: A specialized method of suspending rootless or severely dehydrated cacti like Astrophytum over water with rubber bands was praised for encouraging rapid root initiation within just a few days.
- Lighting and Dormancy Requirements: Members cautioned against placing desert cacti in dark indoor rooms or relying solely on basic grow lights, emphasizing that full sunlight and a cool winter dormancy period are necessary to induce blooming.
- Pest Management Practices: Effective solutions for mealybugs include direct application of isopropyl alcohol and systemic insecticides, while using volcanic ash grit helps prevent sciarid fly larvae infestations.
Zigs
New member
- Location
- Kent, England
Zigs
New member
- Location
- Kent, England
Picked up a few rescue plants yesterday
Sheal
Well-known member
- Location
- Ross-shire Scotland
Is the one with dreadlocks in the tall pot supposed to be like that Zigs? 
Zigs
New member
- Location
- Kent, England
Is the one with dreadlocks in the tall pot supposed to be like that Zigs?
Yep, he's a Monkey Tail Cactus, Cleistocactus colademononis. They live in higher rainfall areas of Brazil and Paraguay (or was it Bolivia?) on cliff faces, the spines shed the excess rainwater
Zigs
New member
- Location
- Kent, England
Mammillaria bocasana, c.v. Splendens. More wooly than the normal bocasana.
Zigs
New member
- Location
- Kent, England
Cylindropuntia rosea. This is one of our most dangerous cacti. It has sheathed spines that once they stick into you, will never come out 
Sheal
Well-known member
- Location
- Ross-shire Scotland
Ouch! Or should that be Owcho?
Zigs
New member
- Location
- Kent, England
Zigs
New member
- Location
- Kent, England
Brasiliopuntia brasiliensis, the only member of it's genus. The biggest of all cacti, reaching 66 feet. Lives in the rain forest.
Anniekay
New member
- Location
- Quitman, Ga.
Another name I've heard for this one is "Mother of thousands ".
I was given some and planted it in my rock garden. BIG mistake !! Three years later and I an
M still finding them popping up !!
Thsnks all for the reply to my "Cousin It" cactus. He doesn't produce any red spikes, doesn't have hooked spines either. All he does is make small pink flowers.
Zigs
New member
- Location
- Kent, England
Yep, they drop plantlets off the leaves ready to take root anywhere. I've got them coming up in the gravel in the cactus shop
Aah, still think he's a Mammillaria, just not a bocasana then
Can you take a pic of him when he does flower, we'll have another look then 
Anniekay
New member
- Location
- Quitman, Ga.
Zigs
New member
- Location
- Kent, England
Look forward to that, still might not get it right as there's about 250 of them but we'll give it a go
Probably the last flower this year on the outside Prickly Pear....
Zigs
New member
- Location
- Kent, England
Couple of flowers this morning, Matucana madisonorium...
That corking on the plant body is from cold damage a few winters ago.
And a few more Echinopsis subdenudata flowers...
That corking on the plant body is from cold damage a few winters ago.
And a few more Echinopsis subdenudata flowers...
Zigs
New member
- Location
- Kent, England
I keep a cactus diary on my website, bits and pieces that I do throughout the month.
Probably a bit boring to look at but I thought I'd stick it on here anyway
Probably a bit boring to look at but I thought I'd stick it on here anyway
Zigs
New member
- Location
- Kent, England
Re potted a new Leuchtenbergia principis today, easier to call it an Agave cactus
Zigs
New member
- Location
- Kent, England
A variegated Gymnocalycium
Zigs
New member
- Location
- Kent, England
These Opuntias have all rooted
Sheal
Well-known member
- Location
- Ross-shire Scotland
They look like they're going on a 'root' march.
