Can you compost nuts and seeds?
Ava Mcdaniel
Updated on March 18, 2026
Nut and seed shells can be easily composted, although being woody means they will break down more slowly, taking 6 to 24 months. You don't even need a compost pile to start composting nut and seed shells, as you can bury them a few inches into your garden beds using the trench composting method.
Can nuts and seeds go in compost?
Put all nuts, seeds and shells into your green cart for composting. This includes: Peanuts and peanut shells. Walnuts, pecans, cashews, brazil nuts, almonds and other tree nuts.Can old nuts go in compost?
What type of nut can be composted? Any nuts, including peanuts (though not technically a nut) can eventually break down and become compost. Black walnut contains a chemical, juglone, which inhibits plant growth in some garden plants, especially tomatoes.How do you compost nuts?
You can crush your nutshells into pieces before including them in your compost pile; this makes the decomposition process much faster as microorganisms will have smaller bits to break down.Do nut shells decompose?
Nutshells do have one drawback: They compost slowly. Most composting materials break down to form compost in about six months, but nutshells and similar woody materials can take as long as two years to break down. If possible, you should grind or crush nutshells before adding them to the compost pile.Don’t EVER Compost These 3 Things? No Way!
Can black walnuts be composted?
Black walnut hulls, nuts, leaves, or bark should NOT be used in compost piles for vegetable gardens. It would be fine, however, in the compost is designated for turfgrass only. Compost containing black walnut residue would be excellent for use on the lawn, but devastating for most vegetable plants.Can you compost avocado pits?
Yes! You can compost avocado pits, avocado skins, and even unusable or brown avocado meat. However, avocado skins tend to be slow to decompose. To speed up the process, cut the peels into small squares with kitchen scissors before adding them to your composter.Can peanut shells go in compost?
Peanut shells are biodegradable and can be added to your compost pile – you may need some time and patience though!Can I put walnut shells in compost?
It's advised not to compost walnuts/walnut shells because the trees contain a chemical called juglone, which is toxic to some trees, plants and vegetables (especially members of the Solanaceae family – aubergine, tomatoes & potatoes) so better safe and than sorry when it comes to composting them.What foods Cannot compost?
What NOT to Compost
- Meat and Fish Scraps. ...
- Dairy, Fats, and Oils. ...
- Plants or Wood Treated with Pesticides or Preservatives. ...
- Black Walnut Tree Debris. ...
- Diseased or Insect-Infested Plants. ...
- Weeds that Have Gone to Seed. ...
- Charcoal Ash. ...
- Dog or Cat Waste.