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Old 07-05-2012, 11:52 AM
Rob Searby Rob Searby is offline
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First recorded activity by GardenBanter: May 2012
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Quote:
Originally Posted by Jeff Layman[_2_] View Post
On 12/01/2012 02:09, Terry Deans wrote:[color=blue][i]
'Jeff Layman[_2_ Wrote:[color=green][i]
;946967']On 06/01/2012 18:42, Terry Deans wrote:-
Anyone got any tried and tested methods to rid an area off these
plants
and corms please? All around tree and shrub/hedging too. Lovely orange
flowers but now just a jungle and invasive. My idea was to do the
'just
dig them all out' method. Can there be any other way? Prob not. Just
wanna be sure they don't return cos I know how persistent these wee
fellas can be!! Thanks anybody.-

Although it looks attractive, crocosmia is an invasive weed once it gets

going. It spreads by its corms underground and by the cormlets above
ground There are some cultivars which are better behaved, I am led to
believe (but I am staying clear of crocosmia!).

You cannot dig them out. The corms break up underground and you may end

up with an even worse problem (muscari are similar)! Spray the plants
with glyphosate at the recommended strength. Wait two weeks and spray
them again. After another week they should be showing signs of
yellowing. If any aren't, spray them again. Whenever new green growth

appears respray. After 6 months or so you should be free of the plants,

but there may be some hangers on, so treat these as soon as you see
them. Once the glyphosate has done its thing, there is no need to dig

what's left out.

--


--

Jeff
I know I'm late posting on this thread but wondered how you were getting on, with your battle.
I was also interested in which part of the country you were from.

I work in garden maintenance in Cornwall, and these pesky plants are the bane of my life, everybody here hates them with a passion and they are referred to as Cornish Weed.

I have had little or no no success with poisons as this inly kills off the leaf and the first couple of corms in the rhyzome string.

Unfortunately short of complete soil removal you will never completely get rid of these little blighters.

What we tend to do is remove as many corms from the ground as possible, and believe me they can go deep, 2-3 weeks later do the same thing again,
this will be your task for life!!!!.

Do not put the waste on your compost heap for obvious reasons. LOL.
Either allow them to dry out on an impervious mat, and then burn them or put them in a black bin bag to go with your normal rubbish.

Sorry to sound so gloomy but you can not believe how much I hate this plant.

Rob.