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How To Strike Roots On San Pedro And Similar Trichocereus Cacti * 19
    #13583817 - 12/04/10 10:43 PM (13 years, 1 month ago)

After reading the billionth post asking how to get roots to grow from cuttings I've decided to write up a tek outlining the way I get roots to grow on my cactus. This is not the definitive guide on rooting Trichocereus, this is just my method which works well for me and seems to be one of the common ways that people get roots to grow. Note: Pictures used were not of the same cactus but will outline what I'm trying to convey.




First off you will need a cutting~




I find that the cutting is best left to a minimum length of Six inches, this is the minimum I like to root mine at. I've found that these do take a little longer to throw roots out and anything under Six inches will probably take longer than ones over that length. I find 12 inch cuttings and upward to root faster than smaller ones.




Preparing your cutting for planting~


Once you have your cutting you will need to let the cut end heal and harden before planting in soil. This is known as callusing/callousing(depending on your locale and reading comprehension:tongue:). To do this you will need to leave it somewhere in the shade, with adequate airflow for a few weeks to months, depending on the diameter. One tip I've picked up somewhere is to allow 1 week per inch that the cactus is wide. Eg: A 3 inch diameter cactus will need about 3-4 weeks to form a good callus.

You want to keep it in the shade because the low light levels will slow growth, which will be weak if allowed to grow as the cutting has no roots. Another reason is the cutting will dehydrate if left in full sun. Airflow is important in the first week as the fresh cut end will dry up and begin to harden. If you're worried about rot or other pathogens taking hold on the cut end you can use a fan to help dry the end out. Sulfur powder can also be used to cauterize the wound in extreme circumstances.



Fresh cut:




About 3 weeks later:




I would give this one another 2-3 weeks before planting in dry soil as the callus isn't fully formed.




Planting in soil to initiate root growth~


Now that your cutting has a good callus it's now time to plant it in some soil so as to encourage root growth. The use of a rooting hormone powder can be used if you so choose but I find they do well without it. If you were to use a root hormone powder use one that has about 3-8grams of IBA(Indole-3-Butyric Acid) per kilogram. Ones designed for softwood to semi-hardwood will suffice.


The soil that you use should be free draining and the majority of commercial cactus mixes can be used. It's wise to cut the soil with about 50% perlite, this increases drainage and also the amount of air in the mix which is useful for promoting roots. Some people just plant in a coarse sand mix and this works just fine. Whatever you use be sure it's airy and drains well with no more than 50% organic matter.


For planting you'll need a pot, some stakes, something to tie the stakes with and of course your cutting:




I like to dry the soil beforehand as planting in wet/moist soil has caused problems for me in the past. ie: rotting bases that need to be re cut, callused and potted again.


Now that you have all that together you can go about planting. I like to only plant the bottom 1-2 inches of the cut end in soil and I only use the bottom third of the pot, helps keep the centre of gravity low and helps prevent them from toppling over which can happen when planted too high. Another reason I only use the bottom third is you don't need to bury half the cutting for it to strike roots. The roots form from the cut end usually so I like to cover the base of the pot with about an inch of soil, then I place the cutting on top of that, then bury an inch or Two of the base until the bottom third of the pot is used. Like this:






Once you've done this it's time to stake the cutting to hold it in place. A method I like to use is the teepee method. Place 3 stakes at equal points in the pot until they touch the base and then you bring the tips of the stakes together and tie them off which securely holds the cactus in place.







Once this is done it's time to put your cutting somewhere in the shade and wait. Do not put your cutting out in full sun. Remember that it doesn't have roots and cannot support any new growth. New growth will use up water stored and will likely be skinny which we don't want, we want fat, healthy growth don't we?. Keeping it in the shade will slow top growth but at the same time encourage root growth which we want.

You want to wait at least a month, preferably Two before checking for roots and to do this you very carefully remove the stakes, hold the cactus to support it and at the same time tip the pot upside down to pour the soil out of the pot. Once the bulk of the soil is gone you can then lift out the cutting and check the base for roots. They'll look like this:

 





If your cutting looks like the one above, congratulations! You've just rooted your first Trichocereus cactus and you deserve a fat bowl of the sweet ganja.:awesome: If you haven't got roots it's ok, it happens to me often and that's the life of a cactus grower.:shrug:


If roots aren't present pot it back up like we did when we first planted it and wait another month or two. There could be a few reasons it hasn't got roots, the main one is temperature. If too cold they will be dormant so won't root until the weather warms up. Just be patient and don't worry if it looks dehydrated either. This can be a good thing as when they're like this they tend to throw out roots in search of moisture and if you water them when they look dehydrated you could be lengthening the time they'll take to throw out roots. So just leave them be and wait it out. They'll do their thing eventually, I promise.


After root strike~




If you're lucky and have roots it's time to pot it up in a sizable container, the one it will call home for the next year or Two. Get your soil and a couple of stakes. These will support the cactus until the roots are established and able to support the above ground growth.


Fill your pot to about a third from the top rim and then carefully place the cactus on top of this. Back fill the container to about an inch from the rim and softly tap the pot on the ground to level and compact the soil. Add more soil so it is about an inch from the rim. You'll need to keep one hand on the cactus whilst doing all of this.

Once you've potted the cactus in soil and the soil level is where you like it you place a stake on either side of the cactus until they touch the base of the pot and then tie off the tops. Like this:





We're doing this as the roots aren't able to support all that top growth and the stakes should be left in place for a few months until they've established themselves and the column can support itself.



:sanpedro: :sun:The End~:sun: :sanpedro:




I hope some of you find this useful and I think this should be the thread where propagation questions should be referred and posted relating to Trichocereus. Any other members who would like to add their tips and tricks are more than welcome to do so. Happy growing all!


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InvisibleNeo Skywalker
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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: karode13]
    #13583834 - 12/04/10 10:51 PM (13 years, 1 month ago)

Thank You. :smile:


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: karode13]
    #13584141 - 12/05/10 12:52 AM (13 years, 1 month ago)

Spectacular write up, karode. :super:

That's the way I do it too, but I learned some neat little tricks that I didn't know.

Some observations/tips:
  • An inorganic medium like Turface works just as well if not better than soil in my experience.
  • For small cuttings (< 8 in), rock mulch is sufficient for stability so no need to use stakes if they're scarce.
  • Cuttings taken during the active growing season seem to root much faster than those taken during dormancy.
  • If the cutting etiolates, cut off the etiolated growth stimulate normal looking pup production on the rooted cutting. Plant the etiolated growth and let it fatten into a more normal specimen or use it for grafting stock.


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: naum]
    #13584281 - 12/05/10 02:01 AM (13 years, 1 month ago)

from what i hear and my experience supports this, if u get a mid cut and don't know which way it up and you plant it upside down it won't root...

if in doubt just lie it sideways


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: zinyop] * 1
    #13584676 - 12/05/10 07:21 AM (13 years, 1 month ago)

That's  a bad idea in general unless you want to root like a log because it will cause roots to grow out of the sides of the cactus.

It's not difficult to determine which way is up and which way is down. For Trichocereus [and other columnars, cactusdan?] the areoles should face upward. The areola is the structure from which the spines emerge and usually is at a ~60 degree angle upward like this \. If it's facing like this / downward then it's the cutting is upside down.


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: naum]
    #13585604 - 12/05/10 12:36 PM (13 years, 1 month ago)

thnx for the step by step pic tek =D


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: Distorted Vision]
    #13585809 - 12/05/10 01:55 PM (13 years, 1 month ago)

Good call, karode. There have certainly been plenty of posts about rooting lately, you should sticky this for all to see!

PS I like that teepee method. Gwan!:cactuar:


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: naum]
    #13588347 - 12/05/10 11:48 PM (13 years, 1 month ago)

No problems. It was long overdue.


Now I don't have to repeat myself, repeat myself, repeat myself, repeat myself..... :zombie3:









Quote:

naum said:

It's not difficult to determine which way is up and which way is down. For Trichocereus [and other columnars, cactusdan?] the areoles should face upward. The areola is the structure from which the spines emerge and usually is at a ~60 degree angle upward like this \. If it's facing like this / downward then it's the cutting is upside down.





Good advice. :thumbup:




This picture should give an idea of what is spoken about above:



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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: karode13]
    #13592149 - 12/06/10 06:26 PM (13 years, 1 month ago)

Good thread K-13 :smile:

I'll be using it today :awesome:


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: tha_doctor]
    #13592820 - 12/06/10 08:26 PM (13 years, 1 month ago)

Nice K13, everyone will be glad to have something to link to now instead of all the extremely repetitive answers


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OfflineCactii
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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: theMallacht]
    #13593093 - 12/06/10 09:11 PM (13 years, 1 month ago)

Very good thread. :thumbup:


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: Cactii]
    #13600108 - 12/08/10 06:55 AM (13 years, 1 month ago)

Cheers for the tek K :smile::thumbup: & for repeating yourself to me in other threads.


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: naum]
    #14184317 - 03/25/11 09:59 PM (12 years, 10 months ago)

This thread is due for a long deserved bump and should be linked in the 'USEFUL, INFORMATIVE, & INTERESTING POSTS/LINKS' sticky.

A new observation:

When rooting, smaller pots are better than larger pots.

In containers, Trichocerei seem to stall slightly when given lots of root space which can lead to skinny growth or lengthen the amount of before skinny growth begins to thicken. When using a smaller pot, pups are noticeably thicker and the small amount of soil makes over watering almost impossible once even a few roots have formed.

I used to root in 1 gallon pots, then I switched to 6" Azalea pots which are half-height versions of the former, and now I root in shallow 4in square pots exclusively when at all possible. Once fully rooted, I repot them near the end of the season.


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: naum]
    #14184497 - 03/25/11 10:37 PM (12 years, 10 months ago)

I'm flattered you find this post useful and point taken on adding it to the useful threads sticky. I'm in the middle of a sowing frenzy so just bear with me and I'll add it soon.


As for the smaller pot suggestion. I sort of agree. I root them in small pots until they're nearly root bound, after this they go into the largest pot I have on hand and they tend to grow rather uniformly from there. In the second year after being rooted I find they pup from the base readily. Sometimes up to 3 pups per plant.


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: karode13]
    #17924845 - 03/08/13 03:14 PM (10 years, 10 months ago)

Sorry to dig this one up- but I found this incredibly useful. Detailed explanation and great pictures. Thank you.


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: b plus]
    #17924945 - 03/08/13 03:39 PM (10 years, 10 months ago)

this one is good. I usually like to lay mine in the shade and at first sign of rootbuds I stick them in the soil and stake up so as not fall.

I wonder where the heck I was during all this.


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: ferrel_human]
    #18033721 - 03/30/13 04:14 PM (10 years, 9 months ago)

my climate is currently too cold to stick the cacti in the shade.

  this winters  snow is still melting, so i'm trying to root it inside.
would putting it next to a sunny window be too much? any advice on my course of action would be appreciated


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: jebre]
    #18033782 - 03/30/13 04:28 PM (10 years, 9 months ago)

:holyfuckdude:this :Awemazing: thread :bow2:


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: karode13]
    #19580608 - 02/17/14 03:39 PM (9 years, 11 months ago)

What if it's a trunk cutting do I use the same procedure?


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Re: How To Strike Roots On San Pedro And Similar Trichocereus Cacti [Re: PsilocybeHunter] * 1
    #19580640 - 02/17/14 03:45 PM (9 years, 11 months ago)

By trunk cutting, do you mean a mid section? And yes, it would be the same as rooting any other cutting.


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