Garden waste
| Creeping buttercup | No | read more → |
| Dandelions | No | read more → |
| Chicken waste | Yes | read more → |
| Pigeon waste | Yes | read more → |
| Soil | Maybe | read more → |
| Pine needles and cones | Yes | read more → |
| Conifer | Maybe | read more → |
| Tomato plants | No | read more → |
| Stone | No | read more → |
| Algae | Yes | read more → |