Re: Calcium in water...

Amazing, eh?  I had sort of noticed that sometimes the water was clear
but beautifully colored greenish blue, but not really paid that much
attention until I heard this guy I worked with talking about calcium
being flushed out by heavy rains and the little light bulb went on.  I'd
never made the connection because it is delayed - doesn't show up till a
day or more <after> the heavy rain, and doesn't show up (or is much less
noticeable) unless the soil has been fairly dry for quite a while before
the rain.  My understanding is that the limestone rock continues to
weather so that it is accumulating until it gets flushed out and returns
to some baseline level.  I think that's what I remember.  Efflorescence.
I think..

So,what does this have to do with iris - I guess we shouldn't water
Japanese iris with creek water when it looks blue?

Betty said:
<After our last, rather
                   extensive, rainfall I marveled at the gorgeous blue
green color of the water
                   where it pooled both above but mainly below the low
water bridge . . . just below
                   my house.  It maintained that coloration for 2- 4
days. Can't rememember
                   exactly.  Lovely.>

--
Linda Mann east Tennessee USA zone 7/8
East Tennessee Iris Society <http://www.korrnet.org/etis>
American Iris Society web site <http://www.irises.org>
talk archives: <http://www.hort.net/lists/iris-talk/>
photos archives: <http://www.hort.net/lists/iris-photos/>
online R&I <http://www.irisregister.com>

---------------------------------------------------------------------
To sign-off this list, send email to majordomo@hort.net with the
message text UNSUBSCRIBE IRIS
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index