GRAFTING ECHINOPSIS SCION PUPS ONTO OPUNTIA ROOTSTOCK
The basic is quite simple. You have grafted a good amount of cactus in the past, maybe 3-6 months ago and now finding yourself to be dealing with pupping Scions and lots of waiting rootstocks laying on the floor.
Yes, that is very common once you started grafting. Cactus grafting often boost the scion to great size and if you are lucky, it comes at ridiculous rate of growth. If you are luckier; the scion will remain growing as a single head, which most cactus grower prefer for but some do otherwise because they want to replicate for more clones.
Having said so, things often go the other way around; grafted scion may pups like crazy and in some cases up to abandoning the main stem growth. If you encountered this situation, usually pups removal solve the issue if the situation is not too late.
My situation is that I'm having too much time during Covid19 pandemic that the unneeded pups can be used as scion for grafting. They are a lot, I did around l20 grafts a day and might took me a week to deal with all the pups and will end up with cleaner old scion and tons of new grafts.
For our sharing today, I'll throw some pictures of Opuntia grafts and the mother plants. Opuntia graft is the easiest as you only cut the scion, rootstock and hold them together. The sap of Opuntia is very good and retaining moisture over the union plus extra sticky.
Here is the mother plants, 4 months old Echinopsis variegata grafted onto thick 1.5 feet tall Hylocereus rootstocks. They are lower in variegation compared to my early grafts, thats why they grow far faster than the already fast growing Echinopsis variegata grafts. The pups next to mother plants are what they used to be 4 months ago, the big Hylocereus rootstock also the main contributor to the massive growth plus I'm growing them in tropical region.
I'm very sure that if we select 100% variegated pups over time they are more likely to continue growing fully variegated but there are also chances that they may revert back to early ancestry patchy variegation. But if we are talking about their next pups as pupping generation, selection throughout many pupping generations may end us with pure 100% variegated plants that even their pups guaranteed to be fully variegated too.
Despites that, in today sharing; historically I went with more green and very slight variegation as a start on this batch. Their pups end up with some fully green and the rest are variegated but on lower percentages. I do not plan for fully green revert batch but if they do happened in the future, I will use them for rootstock due to their size and growth.
Let what is in the future unravel later shall we. Now I will share the basic step in grafting Echinopsis pups onto Opuntia rootstocks.
Find a nicely grown Opuntia pads/cladodes, better if they shed the tiny leaves which indicates that they are sturdier that newly emerged shoots.
Chop chop. That's a razor sharp knife with exchangeable blades and I'm grafting outside with stones as chopping board lol.
Cut the rootstock, I prefer to wedge the edge a bit so that the scion does not move much when united.
Wrap with plastic wrap and held with rubber band to secure. Nothing hurts you more than wind or rain knocking your grafts if left unprotected.
Now, lets see the mother plants with cleaner appearances and hopefully grow better than before, although to be honest even with lots of pups they are still the fastest growing in the collection here.
The bigger pups hurts a lot lol. Their spines are sharp and hard although not mature yet. I'm kind of glad when the scion get sunken areoles because these spines going to hurt a lot more if matured. Another group of pups from other mother plant gave me more than 20 grafts today.
Big sized 2 months old variegated Echinopsis
These are Opuntia grafts made 2 months ago and some are a months old, I replaced the failed graft with variegated Echinopsis. The early grafts are from Lobivia and Echinopsis swapped with a friend.
The only 2 months old variegated Echinopsis. Comparatively, it grown many times than original size before graft.
Looking at the bigger picture, Opuntia is a good rootstock and would fit well with Echinopsis. And rather than throwing away your scion pups, its better to graft them or at least root them.
Alright, that is it for today, I will try to write and post more and hopefully they internet coverage does not go crappy again.
Happy Growing Cactus guys!
Cheers.
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