Color palette - open to suggestions, but I like earth tones (especially dark green), with something bright to add contrast, probably a light/dusty pink (I think people equate pink = worms). 

I prefer a style that is minimalist and abstract. The logo should convey the following concepts:

NATURE - I think leaves, plants, etc., could be used as shorthand for this

WORMS - Representation should be very abstract. They are equally as important as the “Nature” concept. Please no clip-art style worms. 

OPTIONAL: The Cyclical Nature of Product - evocative of the recycling symbol without actually using it, or copying it too closely. But I think representing this theme is secondary to the Nature/Worms theme. So this can be dropped if it compromises the minimalism of the design. 

I generated several logo examples with AI (see attached document). Here are the two prompts I gave the AI:

“Create a logo for a business called "Underhill Worm Farm." I would like it to incorporate elements such as plants, gardening, earth, worms, etc. but in a very abstract sense. I don't want it to look like clip art. It should be very simple and clean. Avoid the recycling symbol (three arrows in a circle) due to regulatory issues associated with this.” 

“Create a logo for a business called "Underhill Worm Farm." I would like it to incorporate worms underneath something like a field, farm, or garden, etc. but all of this should be done very abstractly. The logo should be simple and clean.”