Re: CULT: Bloom Out, Preventing
From: John I Jones <jijones@ix.netcom.com>
> Loberg wrote:
>
> I would like ideas on how to encourage Iris which look like they
> are heading towards bloom out, to start growing new plant growth! I
> apologize if this has been discussed before and I didn't catch it. I
> have a guest garden for our Region's Spring garden tour meeting for
> next year. I am looking at my guest bed plants which are blooming
> nicely the first year, and see a few problems. The vast majority are
> showing nice increase on the plants, however, I have a few that are
> blooming on the single rhizome with no sign of new increase.
> The only ideas I have heard in years past is to throw extra
> fertilizer on the plant. If any of you have successful ideas and/or
> what not to do, I would appreciate your comments. Thanks.
There have been several suggestions in the past. One, I am going to try on a
couple I have that look like they are going to bloom out. The theory goes: All
along the sides of the rhizome are nascent (undeveloped) increase points (I
forget what they are called). They are held in check by some chemical produced
by the main growth point. So, I am going to cut off the main growth point,
split the rz along its length, let it air dry a bit and put one in sand and
the other in compost/soil mix (see which works best). I am thinking about
giving them a good dose of calciuma nd micronutrients.
The archives have a lot of talk about bloomout.
John | "There be dragons here"
| Annotation used by ancient cartographers
| to indicate the edge of the known world.
________________________________________________
USDA zone 8/9 (coastal, bay)
Fremont, California, USA
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President, Westbay Iris Society
Director, Region 14 of the AIS
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