Re: Evansia species

Tectorum is reasonably hardy in Minnesota, Zone 4, where it can but rarely does get to -30 F (I think that's about the same Celsius. I grow both blue and white and a clone from Taiwan. They are near an oak tree and get a generous covering of leaves without my worrying about it. I think they suffered a little damage last year and didn't bloom as they did the year before, but they are still alive and have increased.  I used to grow NADA as a houseplant and it bloomed indoors very well. I don't know why I don't have it any more, but would sure like to get a new start. Anybody know where I can get it?
        Joan Cooper, Roseville, Minnesota        Zone 4

Robt R Pries wrote:

 

Hello Edmundas; I am zone 6 to 5, which means we get winters with a low of -10 degrees Fahrenheit(-23 degrees Celsius). Tectorum has no problem with our winters. Confusa either dies, or is so severely damaged it is kept as a pot plant. Confusa can tolerate a moderate zone 7 (about-15 degrees Celsius) but will die back to below ground, (somewhat risky). If you want to maintain it in growth through the winter I would suggest not lower than 40 degress Fahrenheit(about 5 degrees Celsius). Confusa will often start to bloom in February when grown under fluorescent lights in my basement, even though it gets pretty cool but never freezing. Japonica seems similar to Confusa in its requirements but has never bloomed for me indoors. Hope that is of some help, Bob.



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