round-up works great at certain times of the year
and at low concentrations. If you can spray selectively around the iris,
hitting the iris leaves as little as possible, deformation is avoidable.
Early fall spray in general will not affect spring bloom if you follow the
guidelines above. We tested a field of iris once with a tractor and spray
rig spraying round-up right on top with a 1% solution and a spreader, fall
rebloom in the field was tweaky but weed control was acheived and spring bloom
was fine with no iris deaths. We have a tool that applies herbicide
through a basically a paint roller with holes in it attached to a PVC
pipe, called the Swideswipe Pro. Gives the ability to apply round-up
with no over-spray or drift...use it year round with no problems. hope
----- Original Message -----
Sent: Friday, September 18, 2009 11:05
Subject: Re: [iris-photos] REB: Belvi
Linda, Going back to last week, you said "With the magic of
Roundup, a few rebloomers are appearing..." How do you use Roundup
around the irises without getting those strange flowers. My neighbor
used it a few years ago and I had some terrible blooms on the plants near his
I ask because I have a terrible crabgrass problem in one
of my iris beds. No matter how much I dig, some still escapes me and it
comes back in full attack.
Thanks, Jan in Chatsworth
From: Linda Mann
Sent: Monday, September 7, 2009 12:55:50
REB: Belvi Queen
With the magic of Roundup, a few rebloomers are appearing...
one is such a tough, reliable old thing, it surprises me no
are registered. Not very fertile? Ugly ugly children?