Square Foot Gardening Forum

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.


Display results as :


Rechercher Advanced Search

Latest topics
» Ladybugs vs Lacewings
by has55 Today at 3:35 am

» Adventures in Table Top
by ralitaco Today at 1:39 am

» Hello all
by ralitaco Today at 12:49 am

» Curled leaves (severe) - tomatoes and tomatillos
by sanderson Today at 12:37 am

» Northern California & Coastal Valleys - What are you doing this month?
by sanderson Today at 12:33 am

» Hello
by MitchHardy Yesterday at 11:16 pm

» Hello from Duluth Minnesnowta
by Razed Bed Yesterday at 10:43 pm

» How To Put a Weather Sticker in your Signature-a video
by Razed Bed Yesterday at 10:38 pm

» grub in compost
by Razed Bed Yesterday at 10:34 pm

» What do You Smell In Your Yard Today
by Razed Bed Yesterday at 10:31 pm

» How I Make Very Fast Compost
by Razed Bed Yesterday at 10:26 pm

» Worm Tube for the SFG
by ralitaco Yesterday at 10:17 pm

» Hi, from Memphis
by Razed Bed Yesterday at 10:15 pm

» Mel's Mix. How strong is your backbone?
by ralitaco Yesterday at 10:05 pm

» what do you put in the compost that other may not of thought of?
by MitchHardy Yesterday at 8:47 pm

» Hello from Ohio
by Vicki G Yesterday at 3:55 pm

» Ground Cherries
by CapeCoddess Yesterday at 3:29 pm

» Hello from Southern Colorado
by Goosegirl Yesterday at 1:18 pm

» Re: CANADIAN REGION - What are you doing in APRIL 2015
by Kelejan Yesterday at 12:58 pm

» Lower South April 2015
by yolos Yesterday at 12:05 pm

» Yellow/dying leaves on tomato seedlings
by freedoms1791 Yesterday at 12:04 pm

» April 2015 - N&C Midwest
by CitizenKate Yesterday at 11:42 am

» New England, April 2015
by quiltbea Yesterday at 11:24 am

» Saving Kale Seeds
by mschaef Yesterday at 10:55 am

» Carrot Week/Month/Year 2015
by herblover Yesterday at 10:51 am

» Stevia
by CapeCoddess Yesterday at 9:08 am

» really hot peppers
by walshevak Yesterday at 6:35 am

» Saving Rain Water
by butterwhat Yesterday at 6:32 am

» The SFG Journey-vermicomposting, adding composting material and creating a earthworm environment http://youtu.be/Xlt8YQ-31Co
by sanderson Yesterday at 2:47 am

» Good grief, my tomato seedlings have a disease already? Help... please.
by Windmere 4/24/2015, 11:34 pm


Search SFG Forum

Composting walnut shells?

View previous topic View next topic Go down

Composting walnut shells?

Post  ksbmom on 11/8/2011, 7:04 pm

We tend to eat a lot of nuts this time of year at our house - my question is, can we compost the walnut shells? I've done some research and seem to find some say it's OK, others say walnuts have a chemical in them that inhibits plant growth, and that even a few will be detrimental. We're not talking pounds of nuts here, but I don't want to put anything harmful in my compost. Anyone have any input?


Female Posts: 146
Join date: 2011-10-26
Location: Central Florida, zone 9a

View user profile

Back to top Go down

Re: Composting walnut shells?

Post  Lavender Debs on 11/8/2011, 7:12 pm

Black walnut TREES are supposed to be toxic to garden plants (not sure if that includes the fruit), but so is fennel and that can be grown in the garden. Just keep it away from beans.

I would use the shells as mulch around the garden to keep cats out.

Lavender Debs

Posts: 2037
Join date: 2010-03-03
Age: 58
Location: Everett, WA USA

View user profile http://songs-of-coming-rain.blogspot.com/

Back to top Go down

Re: Composting walnut shells?

Post  Too Tall Tomatoes on 11/8/2011, 8:11 pm

I heard about the toxicity of walnut trees but a friend of mine had a veggie garden planted around a walnut tree. He really did grow some nice stuff.

Too Tall Tomatoes

Male Posts: 1069
Join date: 2011-10-24
Age: 44
Location: Pennsylvania, Zone 6A

View user profile

Back to top Go down

Re: Composting walnut shells?

Post  UnderTheBlackWalnut on 11/8/2011, 8:56 pm

Most of the walnuts you buy in the shell are English walnuts. Those are not toxic. The walnuts that are toxic to certain veggies are BLACK walnuts. Normally they are purchased already shelled. They are smaller and have a "prickly" looking shell encased in a green husk. Black walnut trees produce juglone which can be toxic to horses and certain veggies...the biggest being tomatoes. Thus, the old-timers will tell you about "black walnut wilt" which is what the juglone in the tree does to tomato plants. Sad There are varying opinions about composting any part of a black walnut tree.

Here is a thread where I have included some of the extension service links about black walnut toxicity as well as pictures and information on how to identify black walnuts. Enjoy! Smile


Female Posts: 559
Join date: 2011-04-18
Age: 48
Location: Springfield (central), IL, on the line between 5b and 6a

View user profile

Back to top Go down

Re: Composting walnut shells?

Post  ksbmom on 11/8/2011, 8:59 pm

Thanks Black Walnut! That was very helpful. You're right - the nuts we eat are English walnuts, so no worries. Many of the posts I read on the net didn't specify a type of walnut. I knew the SFG folks would know the answer!


Female Posts: 146
Join date: 2011-10-26
Location: Central Florida, zone 9a

View user profile

Back to top Go down

View previous topic View next topic Back to top

Permissions in this forum:
You cannot reply to topics in this forum