This looks like speedwell. Corn speedwell is an upright, clumping
winter annual that produces small purple flowers in the spring. Corn
speedwell does not typically persist very long after flowering.
Attempts to control corn speedwell in the spring are usally
unsuccessful because the plant is at the end of its lifecycle. This
type of weed is best controlled with a post emergent herbicide during
its peak in may or november.
I don't know exactly what it is, but I have some of it and Weed B Gone
whacked it. I would think any broadleaf weedkiller would work. I'd go
with liquid and a small tank sprayer to deliver it right on target for
max effectiveness and minimum usage.
Ciscoe Morris our local TV gardening guru suggests spraying any weed or
unwanted grasses between concrete cracks with straight vinegar on a hot
I have tried it and it really works and is fairly non-toxic....you don't
want to get the vinegar on ornamental or other desired plantings though/
You can read Ciscoe Morris's website by typing his name into search.
That stuff has taken over my newly seeded areas.
I'm not gonna spray until the 3-4th mowing of the grass sprouts, but will
the veronica go to seed before that?
Will a pre-emergent be needed to prevent an infestation next spring?
How best to deal with it now in new blue grass?
Thanks for identifying that weed, I couldn't figure out what the hell it was
either. (and for any reply)
It's more of a winter annual like chickweed, in other words it is usually
growing as soon as the snow melts. It doesn't like summer weather so you
should be able to get it under control this year with your post-emergent
control, after your seedling have established.
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