Re: TB: CULT: Increase?
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.
Planting depth doesn't change. Rhizomes have demonstrated the ability to
adjust planting depth when buried too deeply.
amyr@jump.net wrote:
> I have several rhizomes that seem perhaps on the point of bloom out.
> I'm wondering how to best care for them to encourage increase:
> fertilizer? Planting depth? Ay other cultural practices?
>
> Is it necessary for the increases to show now? If not, how long
> does the rhizome have to produce increases before it's considered
> "bloomed out"?
I'm not sure what you are talking about here. Your bloom stalk will come
from the central rhizome and the increases will be shown by fans without
bloomstalks this season, surrounding that rhizome. I makes a nice
semi-circle in two year clumps. If not dug, these will shoot up their own
bloomstalks and increases the following year.
When I'm separating new rhizomes from the central one, which is discarded,
if it's a really good iris that I want maximum increase from, and there are
tiny increases the size of a button, I'll put them in a pot with a label
over the winter and plant in early spring.
> Again, an Iris 101 question, but believe me, I have learned immensely
> from every question I've asked and you have kindly answered!!!
>
> --Amy
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