Pecan Shells as Mulch?

by Monica
(Christoval, TX, USA)

I am starting a garden and I have heard of people using pecan shells as mulch.

But would this be good for the plants in my garden? I thought the shells are high in acid.

I know people put them in compost. What do you think? Thank you!!

AMSWER:

I have heard that pecan shells make great garden mulch. The shells' high acid content can help stop weed seeds from germinating.

Pecan shells also act as a slug deterrent and help hold moisture in the soil.

The acid that is released as the shells decompose will be beneficial to acid-loving garden plants. I haven't heard of it being a problem for the other plants.

Here in Oregon, we use filbert (also called hazelnuts) shells as mulch for the same reasons.

Not everyone uses them in the garden. They can also be used as a landscape mulch in borders and flower beds.