CULT: Clumping & Rhizome length
- To: iris-talk@onelist.com
- Subject: CULT: Clumping & Rhizome length
- From: J* C*
- Date: Sun, 27 Jun 1999 15:39:38 PDT
From: Jan Clark <janclarx@hotmail.com>
Hi All,
I find that I get a good clump from the first increase of rhizomes, which
often form a nice round circle. The next lot of increase have difficulty
finding room to grow, and look uncomfortably crowded. For example ENGLISH
CHARM which has about 7 rz in a ring, each producing something like 12
increases. That's roughly 80 rz on the perimeter of a 16" circle. They have
put out more increase this year, probably because they have established
their root system. Also feeding them in autumn has resulted in phenomenal
growth with all the winter sunshine they are getting. They have certainly
formed a clump, as have many other cvs, but it is a tight clump and will
desperately need transplanting in Summer.
The rz's on many of these cv's are short and thick, generally arise from
close to the heel of the parent rz, and don't spread far from the parent.
Older cv's are probably more likely to form a nice big clump because the
rz's are longer, or they don't produce as many increase, so can be grown in
the same place for longer.
This is only my understanding of the situation after growing TB's for 3
years or so. Do others agree?
Cheers, Jan Clark
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