Yes it is

Looks like a Trichocereus pachanoi

Janaina wrote: ↑Mon May 18, 2020 2:23 pm

Love that last photo of a variegated Gymno.
I have grown many cacti from seed and only had the opportunity to see 2 variegated seedlings - managed to kill both of them

They look good! I have some that are about 3 months younger than yours and I have not yet taken them out of the humidity. Some of mine have also become retarded like your smallest one while others grow much faster like the other two. Thanks for your compliments - are you in a position to post some ...

They look good! I have some that are about 3 months younger than yours and I have not yet taken them out of the humidity. Some of mine have also become retarded like your smallest one while others grow much faster like the other two. I was wondering about the smaller one with retarded growth - I tr...

I can categorically state that the cacti have grown WAY better in pure sand than in any other medium. I am absolutely convinced beyond any doubt that pure sand is the way to grow cacti. This is inappropriate advice for most people. In the vast majority of climates around the world all cactus specie...

We have been growing thousands, if mot millions cacti in plastic pots since the late 1960's in the UK with no problem. Few here use terracotta pots anymore and ours is a colder and damper climate than many of you have. You modify your potting soil so it dries out at the rate required for your clima...

Photos with more detail (zoomed in...)

Hi Everyone, Thought I would post a photo of my 3 beautiful Ortegocactus macdougallii seedlings. Bought 15 seed from a supplier and sowed them on 10-Jun-2019. Out of the 12 that germinated, only 3 have made it to this stage. Germination Temperature: 23-26 Deg C Lighting requirement: ~3000 Lux. Too m...

I used to get into the technicalities of soil porosity, water retention etc. and I learnt 2 years ago, that cacti simply love plain sand - doesn't matter which one - builders, river or playground. The key here is to remember that you need to plant them in terracotta pots. I too started off with abou...

Sorry Steve Johnson,
Forgot to address your question about watering: I water everyday in summer - the sand and terracotta combination does not allow the roots to be soaking wet and have great wicking capacity - this ensures that the water spreads beautifully in the sand.

Hi Steve, I have extensive experience growing cacti of different varities, in pure sand. You read it right - pure beach , builders or playground sand. Just out of curiosity, I'd like to ask you a few questions: Do you fertilize your plants? If so, what kind of fert are you using, how much per water...

Don't know about perfect. I was terrible at making soil My secret ingredient? Gravel. At least 40% of the soil per volume has to be gravel. I also have used pearlite, baked clay, , lake gravel as supplementary components and crushed brick, leca and orchid bark as additions. Only peat as organic com...

and another photo of 3 baby Gymnos I planted in fine washed builders sand...

I made a new mix with way more pumice to sand and it holds too much water. I have to add some course sand / small gravel to the mix. If you're talking about fine sand like beach or playground sand, that's no bueno for cactus and succulent mixes. Don't know if you've already seen it, but just in cas...