Hi Bob, That was quite a shopping trip!
with everything Baja said:
Peroxide when added to water, causes a chemical reaction that destroys organic matter. That's why its used in cleaning products (Oxygen bleach). I'm not sure why its become so popular but I hope the whole fad fades soon.
My water is pH 8.0 to 8.5. I don't acidify it. I know Baja sometimes questions my growing habits (I very rarely remember to fertilize, even though I always have good intentions and repotting sometimes takes years.
). Even so, cactus don't require much and some of mine are over 60 years old.
Does your greenhoue have roof vents? Heat rises. You don't want the heat trapped at the top, you want it to exhaust through the top. In through the sides and out through the top. A breeze is alway cooler and humidity also helps cool. You may want to think about a misting system. A shadecloth cools without blocking much light. I have shadecloth over about half my greenhouse. The succulents and some of the cactus are behind shadecloth. My greenhouse often gets to 110 but when it does, I go out and spray down the entire greenhouse, plants and all. That's with roof vents, side vents, an open door on each end, half a dozen fans, misters and shadecloth. Otherwise, my greenhouse would be a solar cooker. Your new cactus could easily become steamed vegetables. But, with a lot of ventilation, wind, humidity, and a little shade the cactus will do just fine.
Mine live in the greenhouse year round. I don't feel like moving plants back and forth and I don't have room for them outside anyway.
Yes, I would love to see what you got also.
