Tom and all.
When it is planted close to a wall, the night time min temperature is higher then it is in garden. thus the plant gets the minimum temperatures it needs to set flower bud earlier then if located elsewhere.
Also plant will mature faster (because of higher average temperataures) then elsewhere.
Of course this will not happen if the problems were in having too high a min temperature at night.
Check my article in last AIS bulletin for more details.
From: thomas silvers <email@example.com>
Sent: Mon, Jul 12, 2010 7:47 am
Subject: [iris-photos] Re: Re: MTB: Summer bloom CRICKET SONG
That wall faces West but it's actually a corner jutting out on the front of our house which faces South (slightly Southwest). But it's interesting that you've observed effects of being planted on the East side of a building because I've been wondering if being near a building at all might be helping out the summer blooming tendency - with some kind of microclimate, heat storage or other temperature modifying effect. I haven't noticed the dews to be any heavier, if anything I'd guess it might even be a little drier. It's only been in one other location before I moved it here. The seedling batch I selected it out of was growing further out from the house on this same South side. But I selected and moved it because of the Fall rebloom. I'll have to try it out planted in some more different locations.
Tom, that clump is up against the wall. What direction does that face? Do you get a heavy dew there?
<<same stalk >>
Over the years I've noticed that many rebloomers do better if planted on the east side of a building or wall. Any observations with CS?