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Worm castings

Posted by sandiegodude SoCal (My Page) on
Thu, Jun 2, 11 at 5:06

Hey all--I bought a big bag of worm castings at the farmer's market for my garden, and I have a bunch left over.

Do citrus trees benefit from worm castings? I have a young lemon tree, a young orange tree and a young avocado tree, and they seem to be doing OK. I just wondered how much they would benefit if I spread some worm castings around their drip zone.


Follow-Up Postings:

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RE: Worm castings

I dont grow in the ground but I dont see where this would hurt the trees. someone smart will chime in soon.


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RE: Worm castings

Absolutely, Sandiegodude. I put down worm casting under all my fruit trees, citrus, avos, stone fruit. Also under my roses. I topped that with composted mulch. It really helps to restore micronutrients into the soil, keep the harmful microbes down and keep the soil moist. I do this at least once a year, and if I'm not too lazy, twice a year. We have a couple of worm farms here in SD county, and they do a very nice job of producing castings. I get mine a the Vista Farmer's Market :-) Just make sure you keep about a 2 to 3" clear diameter around your trunk mulch-free to prevent the bark from staying moist and rotting. For us in S. Calif., mulching can improve our soils, reduce the pH a bit, and help retain moisture. Now, in other areas of the country, mulching citrus may NOT be a good idea, as it may cause to much moisture to be retained and lead to root rot, but for us in S. California, it appears to be beneficial.

Patty S.

Here is a link that might be useful: Texas A&M: Compost Effects in 'Rio Red' Grapefruit Production on a Heavy Textured Soil


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RE: Worm castings

Worm casting would always be of benefit to the soil, and subsequently to any kind of plant planted in the soil. The only time I would not suggest that you use them (in large amounts) is in container gardening, where they might 'clog' up the porous potting mix texture that is so essential to healthy container grown plants.


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RE: Worm castings

Thanks guys!

@Patty -- I got this bag at the Vista Farmer's Market too. It's been sitting in my garage for a month and then it just dawned on me, I bet my fruit trees would love it!

I have a very clay soil so any opportunity to give it more nutrients I'm up for.

I'll do that this weekend. Thanks everyone!


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