Re: Digest Number 1048


> First, remove old bloomstalk as soon as bloom is complete. Fertilizing with
> something like bone meal will encourage increase. Check the archives for
> alfalfa pellets, which many use, but this is an area I haven't gotten into.
> 6-12-12 granular is also an option that not only encourages increase, but
> might aid in rebloom if your iris has that tendency.

Bone meal is phosphorus, which typically induces bloom, not vegetative
growth -- that's USUALLY nitrogen for foliage and potassium for 
roots.  Alfalfa pellets contain a growth stimulant (not just nitrogen).

What should the timing be for this?  I typically would fertilize in
late fall or early spring so as to not try to induce too much
growth in iris that must survive a brutal summer.

Would shade (near total shade, covered by deciduous trees and
the expansion of evergreens) tend to limit increase or enhance
it, since bloom would be inhibited?  I do intend to move these
iris this fall to receive more sun, but only after the intense
beating of summer.

--Amy

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