Thistles (and dandelions) grow in poor undeveloped soils. As FarmI said,
they bring nutrients to the surface. The are both good as food and
medicine to them whats got any sense. If you want to get rid of
thistles, improve the quality of your soil.
"For the first time in the history of the world, every human being
This weed, which we call "The Tumor" (in your best Arnold
Schwartzenager voice) is drivng us nuts. It comes on super fast,
grows super fast and returns after we pull it out. Its got prickly
edges. See phot link below.
Is there a chemical based weed killer that can take this out? Preen
did nothing to it. This weed just laughed at Preen.
From the picture, this looks like a few seconds with the hoe, they are
gone, although temporarily. No chemicals needed. But to remove a
unwanted plant that is growing with iris, grass, etc. is a bit
tougher. Roundup will kill the root. Be careful with overspray, or
you can paint the leaves using a paint brush/sponge and rubber gloves.
Established thistles are tough--I have tried flame torching with
limited success. I have not tried Preen--isn't that a pre-emergent
It looks like a very young Canada thistle plant to me..and the only
thing that I have found to kill it is fresh roundup. ISTM that when
Roundup gets older it loses it's punch.
You can also get rid of it by digging it up. In my soil I cannot pull it
up..it just breaks off.
EJ in NJ
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