I need acclimation tips for the Heatwave

[Dollythehun]

Originally Posted by estación seca

What are your night temperatures outside? The day temperatures you mention are easy for most orchids to handle, especially if nights get substantially cooler. Your day temperatures are not far off from my sunroom as we speak.

80+f It's hot for here. I'm worried about sunburn or heatstroke. And they've been 20 degrees cooler...

---------- Post added at 03:02 PM ---------- Previous post was at 02:59 PM ----------

Originally Posted by Leafmite

I do not grow Cymbidiums but the Cattleyas do not seem to mind variation in temperature. Sometimes if it is very hot, then quite cool, then hot again, it will prompt an extra growing/blooming period but that is all. The heat will make the Cattleyas grow like crazy so I usually add Ironite, extra Calcium and Epsom Salts to help keep the growth healthy. I use the same amount of MSU fertilizer but I flush more often to avoid the salt hurting the roots.

This is great weather for the Cattleyas!

Is ironite similar to actino iron? Pulverized iron, I think.

[Orchid Whisperer]

Originally Posted by Dollythehun

80+f It's hot for here. I'm worried about sunburn or heatstroke. And they've been 20 degrees cooler...

---------- Post added at 03:02 PM ---------- Previous post was at 02:59 PM ----------



Is ironite similar to actino iron? Pulverized iron, I think.

The temperature I would not worry about at all. How many orchids are you moving outdoors? If not too many, you can probably get a roll of plastic window screen and hang it over your plants, moving it eventually (allowing your normal summer shade when you judge the plants can tolerate it).

Ironite will provide more iron available to the plant than pulverized iron. I can't offer an opinion on actino iron - product I've never heard of.