Where can a zombie buy?
Is it controlled or anything? I read in one article it's considered a pesticide in certain cases.
Why the hell am I asking the garden folk about copper hydroxide?
Did you know if you mix copper hydroxide with a latex based paint at the correct ratio and paint the inside of a plastic growing container; then the roots will be chemically pruned on contact?
You're probably thinking hey zombie man that is stupid man why are you in this garden talking about chemically burning roots anyway!?
I know how you feel... But lemme talk some more first..
Basically as the root tip reaches the side or bottom of the pot and comes into contact with the copper, the meristem is altered. The root tip remains essentially uninjured however it splits off into 2 or more lateral roots and sorta turns around to continue growth. Then it hits the other side of the pot, then the other, you get it. Constantly pruning it's own root tips to promote a higher volume of fibrous roots over tap roots.
Tap roots are good for resource storage yes, and they help stabilize the entire plant, true true...
But fibrous roots are far more effective and efficient at picking up and distributing water and food. A vast healthy fibrous root system is surely going to lead to a much better overall root ball structure and this directly translates to how quality your plant will look. Tap roots circle and they grow wonky; hell im gunna say it man, I'm positive most of my growing could be done faster and better if I had a higher ratio of fibrous to tap roots.
If you're an arborist lol (or just crazy like me) you may have heard of various container root pruning techniques. Larger tree species are notorious for developing shitty tangled tap root systems if grown in containers. So a small part of the industry decided one day to line all the pots with copper hydroxide paint. For many years various products to solve this issue have been tried..
- air pruning, just basically potters with a bunch of small holes so when the roots reach a hole and peak out, the sunlight+air kills them. Simple 5/10.
- chemical pruning, halting but not harming taproot,. Splits the meristem into 2 and send the root
- physical pruning, messy, innacurate, labour intensive, open wounds..
Bees = life ya'kow
This self root prime system is used primarily in tree nursery stock.
Here read some literature on the type of product I'm talking about:
http://fshs.org/proceedings-o/1992-vol-105/219-220%20(SVENSON).pdf
These are super duper friggin useful and effective in tree nurserys (generally trees have a deep tap root) to support a much much more fibrous root system so the trees can live longer in smaller pots while continuing to grow but never becoming root bound! A smaller mass of fibrous roots will support a larger plant than the same mass in tap roots.
*Of course you can't dismiss overwintering if that's required for your species. If you encourage fibrous over tap roots you'd be watering this plant and perhaps even feeding it just slightly more often, in the winter dormancy this can lead to fungal and bacterial rots quite possibly ~ also consider that without regular care you could lose the plant overwinter if it doesn't have enough tap root left to hold sufficient storages*
However, given the right care frequently enough, I believe a root system with more fibrous roots than tap roots is preferred. Excluding big old wise Oak trees. They deserve their tap roots for being so magnificent.
Zombie is thinking of utilizing a copper paint to try and encourage stronger/faster root systems on some cacti, succulents, Cannabis, blah blah honestly I'll give it a shot on pretty much anything if I can find it.
I used to work at a nursery and did manage to score a few 2 gallon fabric potters with copper thread woven into them; they work quite well. I also have half a dozen or so 1 gallon of the same pots. Oooh and I've got some shitty brand name air pruner pots but I don't use em cuz I didn't like em ever.
So holy shit that was longer than planned;
TLDR
Where can I buy copper hydroxide powder and/or copper hydroxide horticultural paint?
I'm having a whole lotta trouble finding any. I want to try it on some small small pots of my literally uncountable cacti to see if it accelerates root growth and mass or hinders it or whatever may be. I'm interested to know what would happen to a Lophophora's tap root too if told to become fibrous instead... All sorts of cool ideas bouncing round my head!
Zombie needs copper hydroxide!!!!
Thanks my friends 
I bet you can set me in the right direction.
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