Greenhouses and dahlias
Sorry for what I am sure will turn in to a lengthy post, but I am in desperate need for some information about greenhouses.
I have 65 tubers ordered for 2015 from Swan Island Dahlias, and plan on buying two small stand up greenhouses with four shelves each to start my tubers growing before planting out. I have requested my tubers be sent March 5 the first date available because they can take up to a month in customs, so there is a chance I will receive them between March 5 - April 15. I want to get them going as soon as possible because I plan to take several cuttings and want the tubers to still have time to bloom.
Should I place the greenhouses outdoors south facing and keep them warm? (Also how might I keep them warm?) or should I put them in a covered area or in my house somewhere in a room with lots of light? Do they need supplementary light regardless? Should they be more humid or dry for dahlias and how do you control this factor in a small greenhouse? I would like to put them outside as I don't have the hugest amount of space but have a well lighted room I can put them in if I have to.
If it helps, I am in Zone 7 in Canada, in Nanaimo on Vancouver Island.
Thankyou in advance if you are reading this and have some suggestions!! :)