When do you put your Orchids outside in the UK

[RosieC]

Thanks for all that info. It will take me a little while to digest all of it.

I know that OB member Hedge has said she grows Den phal/bigibbum hybrids in full sun here in the UK. I'm sort of interested how early I can put them out because I think the earlier they go out the better because they will gradually get used to the increasing amounts of light as the weather gets better, on the other hand I don't want them to get too cold.

I'm currently getting mins arround 46F in my unheated greenhouse, but I recon it's a bit colder outside at the momment (which fits well with the Min blue line on your graph). I'm at a point where the greenhouse window is open in the day but I close it at night. While some of the orchids I plan to put outside are in that, others are currently in the house (the dens) and so are more used to higher temps.