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kinlaw

Is This Walnut Mulch? Did I Mess Up??

Hello Reliable and Helpful Garden Geniuses!

So...yesterday we planted some zinnias and I went down the street to a big pile of [I think] free mulch in my neighborhood and got a bit to put on the new bed with the zinnias. Problem is, now I'm wondering if I accidentally got walnut mulch. I know walnut has a "killer" compound in it (jugalone?) that inhibits growth and makes walnut bad for use as a general purpose mulch.

Below is a picture of one of the leaves I got out of the mulch. I'm hoping one of you can tell from this leaf whether this is walnut or not. Thoughts?


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