Wow! Can you DM me on how you did that and the source(s) you learned it from? I’m down to even order books if I have to.
So, aizoaceous said that cacti aren’t generally grown in coir under lights. Can they be grown indoors though?
I had a little peyote that I mistakenly thought had come down with root rot, along with too much PC pach, so I just followed a grafting guide that's somewhere in the cactus forum here.
It's probably as quick just to type a summary here as to track down the relevant thread:
You will need:-
- Razor sharp knife
- isopropyl alcohol
- clean paper tissues
- grafting tape* or
- soft cotton twine with small weights, 2 per length of string [2 inch × ¹/₄" bolts will suffice]
- smallish live peyote cactus
- PC pachanoi cactus of about 2" diameter, well-hydrated and growing happily in a pot or the ground.
If using string, cut four or five 10" lengths and secure a weight to each end.
Use the isopropanol and paper tissue to sterilise the knife blade and the area around the circumference of the pach you intend to cut. Aim to remove 4" or more of tip, but not so much that the cactus core is likely to be excessively woody. Make a single, straight, clean cut that is practically horizontal.
Next cut off the edges of the newly cut surface to form a sloped shoulder of about 45°: the cross section of the cactus stock should resemble a fairly regular polygon, so you're usually cutting off five to seven small slivers, each one parallel to one of the edges. Take care to leave the circular vascular bundle aroung the centre intact.
It's possible to do this bit of the cutting some days in advance, so you can spend a day preparing grafting stock if you want to do a lot of grafts.
Clean the knife and the circumference of the peyote, then take a deep breath and cut off your grafting scion a little above ground level. If your stock was cut in advance it's now time to very quickly cut a thin sliver off the centre so there's a completely fresh, totally flat surface. Remember to clean/sterilise the knife first!
Place the peyote scion onto the stock so that the circular vascular bundles are touching comfortably or very slightly overlapping. This is
absolutely essential for the stock to be able to transfer sap into the scion so that it survives and the graft holds.
Press the scion firmly but gently into place and secure it either with a piece of grafting tape stretched over the top, or by hanging the weighted strings carefully over the top of the graft.
Say a prayer of thanks to Mescalito, and hope that your graft takes!
*Ordinary transparent sticky tape can also be used to secure grafts.
The reason for the slanted shoulders is two- or threefold: as the cut surface of the stock dries and calluses over, it also shrinks. This causes the hardened cactus skin around the outside to become raised up, which can both trap moisture (rain) and/or possibly push the graft off if not removed. It also makes it simpler when cutting a really fresh surface on the vascular bundle.
That's a less brief summary than intended, but I hope it's helpful.