Last 2 nights something has dug up recently planted tomatoes and squash. Whatever it is they are not eating the plants. Digging a 3-4” hole. Plants were started in potting soil . Coon or woodchucks?

Sounds almost like squirrels, but could be skunks or another critter that's looking for grubs.
Feral cats love to destroy gardens, using them as toilets .

Likely coon or skunk digging. Chucks or rabbits would of trimmed your plants.

Skunk

Not to hijack your thread, but this garden pest is dinking with my bean crop!

If you are wondering...... If it walks like a ...... and talks like a ......, it must be a ......!

Woodchucks are not nocturnal, neither are squirrels. I too feel you have some animals looking for worms, bugs, beetles etc. Pulling small plants and not eating them, I have birds do that to my onion plants, but that is during the day and you say this is done at night. Could be very earlly AM or at dusk and then it could be a whole host of creatures.

Bryce

I tend to agree that the OPs problem is not ground hogs but I disagree that they are not nocturnal. I have trail camera pictures of ground hogs out feeding at night.

I bet you know a trapper , maybe he could put some traps out and catch it and give you a solid idea what it is.

If you are using bone meal or blood meal, skunks or coon will dig to get at it.

yeah that thing where you put a bluegill in with your tomato plant does the same thing.

Squirrels did that to my pepper plants, didn't eat the plants but up rooted em. Rabbit jumped up in my 2' high raised bed last year and had a litter.

I have alot of coons here at my creek bottom cabin.... they always like to dig in fresh dirt when I plant something .... even if I bury something or trench.... coons dig in the dirt I disturb for a couple nites or so.

I wouldn't rule out rats either. Just got rid of a few for a lady, they were digging the potted plants up in her family room.

Coons were turning over the pots and dumping out the soil and spices (thyme, basil, oregano) my wife was growing on the back deck. Did it every night until I trapped them. A trail cam will tell the story.

I don't know about groundhogs be truly nocturnal but I have seen them out when it was dark enough for a trail cam to switch to infrared mode and take black and white photos.

Put out 2 live traps last night. One med size coon.