Re: limestone
- To: s*@MAELSTROM.STJOHNS.EDU
- Subject: Re: [SG] limestone
- From: C* J*
- Date: Thu, 15 Mar 2001 11:56:47 -0600
- References: <20010315130656.11518.cpmta@c004.sfo.cp.net>
AuntyB wrote:
I'm sure I'm going to have to add limestone to it. It's been years since we've tested the soil, and over the years it's accumulated a ton of oak leaves from our yard. If I end up having to add limestone to it, how do I know how much limestone to add? I don't want to over-add, but not sure just how much is enough. Thanks for any help! AuntyB
I have often heard that the soil must be acid under oaks, so I was rather surprised to see that our soil averaged about 7.5 pH under our huge old oaks where I took the samples. I've since heard that the process of composting neutralizes the acidity of the leaves. Is that true for everything? I still hear recommendations for mulching with pine needles around azaleas and other plants that require acid soil....but if the needle mulch becomes neutralized as it decomposes, are they really any better than other less acidic mulches?
Still puzzled,
Cindy Johnson
White Bear Lake, MN
zone 4a
