Pre-emergent ?

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etnredclay Spring City, TN Aug 05, 2012

In the spring if I use pre-emergent to cut down on the weed population in my flower beds, that will stop echinacea and black eyed susan etc seeds from germinating as well, right?

So what if I didn't use it until I figured all the perennial flower seeds that were going to had already germinated, and THEN use it to help control weeds????

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ecrane3 Dublin, CA(Zone 9a) Aug 05, 2012

You're right, it'll prevent any seeds from germinating not just the weeds. So once your seeds have germinated then you're fine using the pre-emergent. Only catch is, a lot of the weed seeds will probably germinate around the same time as the seeds you're trying to grow before you've been able to use the pre-emergent, so its effectiveness may be limited. But if you tend to get a lot of weed seeds sprouting later in the season then it can still help control the later ones.

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etnredclay Spring City, TN Aug 05, 2012

Thanks, that's what I thought. I get a new crop of weeds with every rain.

Now if I could only find a simple solution for viney weeds.....

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themoonhowl Prairieville, LA(Zone 9a) Aug 06, 2012

I asked the same question once etnredclay....the response...."apply concrete liberally throughout the garden"....not much help, but point taken....grin

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etnredclay Spring City, TN Aug 06, 2012

Well, Moonhowl, that's exactly my response to dogs digging holes in the yard -- concrete. Eventually you will have a really big PATIO. LOLOLOLOL.

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themoonhowl Prairieville, LA(Zone 9a) Aug 07, 2012

LOL...but it did bring to mind the old song "They paved Paradise to put in a parking lot".

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MiniPonyFarmer Gilmer, TX(Zone 8b) Aug 14, 2012

I used PREEN heavily every 2 to 3 months this spring primarily because last year's drought brought in a whole lot of weeds during times we had lots and lots of daily wind. I found that it is not 100% effective, and I believe that it can only removed probably 85-90 % of the sprouting weeds at beds. My coneflowers and many other seeded perennials and annuuals DID make seedlings which I transplanted to new locations. I still had to pull weeds regularly, but less than it would have been without PREEN.

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