bad to compost.. ?

vieja_gw(z7NM)October 17, 2011

I have understood that one should not compost some things in the garden & that black walnut shells, leaves & husks are some of those. Is that correct? I do compost most of kitchen wastes & shade tree leaves (ash, mulberry, cottonwood, etc.) & have really improved our mainly natural caliche soil over the years so that our garden soil is a dark,rich easy to dig consistancy now but a relative was going to compost the black walnut leaves, etc. & I was concerned!

Thank you for reporting this comment. Undo
tsugajunkie z5 SE WI

It depends on a number of things. How long you let your compost "finish" and what percent of the pile is from the walnut debris are probably the two biggest. I compost some but my pile decomposes for a year and the walnut leaves and twigs are only about 10% of the pile. Shells never decompose and husks can be messy so I avoid those. I freely use my compost on tomatoes (very sensitive) with no ill effects.

tj

    Bookmark   October 17, 2011 at 10:25PM
Thank you for reporting this comment. Undo
Kimmsr(4a/5b-MI)

The shells of the Black Walnuts are so hard that it is difficult to compost them, so any juglone they might contain will not be easily added to compost. I have composted Black Walnut leaves for years and have seen very little adverse affects from that. I have also shredded the Black Walnut leaves and spread them around the lawn where there was a good growth of Quack Grass and did observe the Black Walnut leaves suppressed that grasses growth, but that it encouraged the Perennial Rye grass also growing there.
Most all of the juglone Black Walnuts will have is in the roots, although some small amount will be through out the tree. Some plants are very sensitive to juglone (tomato/potato/[pepper for example) while others are not adversly affected at all.

    Bookmark   October 18, 2011 at 6:40AM
Sign Up to comment
More Discussions
Composting gone cold
I've been composting for decades, but this winter,...
apg4
Interpreting soil test results (for my rose garden)
Soil pH (1:1, H2O) 7.1 Macronutrients Phosphorus...
Gary
Compost is wet and soggy. Can I use it? It's not done yet..
Hi there. My first compost is almost a year old now....
Mikkel Nielsen
Questions about gritty mix
Hi folks, I am a long time gardener but new to the...
hsw (zone 6, Boston area)
Using mushroom spawn or spores
How do I add mushroom spore or spawn to raised bed...
digsindirt1
Sponsored Products
Standing Bin Composter
$149.50 | FRONTGATE
Veranda Mink 20-Inch Decorative Pillow
$46.00 | Bellacor
Smart & Green | Dew LED Indoor Outdoor Lamp
YLiving.com
Hillsdale Bailey Panel Five Piece Bedroom Set In White
Beyond Stores
Furniture of America Davao Parson Leatherette 2-piece Dining Chairs Set
Overstock.com
Firebird Pendant by Tech Lighting
$292.00 | Lumens
Fifth Avenue Collection 3-Light 34" High Foyer Pendant Light
Lamps Plus
Tierra-Derco 85 Gallon Composter - 9496
$105.98 | Hayneedle
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™