Newbie needs help with ground cover

I am very interested in planting ground cover in some areas but need help. I only tried it once.

I tilled a large area, bought some ground cover, the seeds were supposed to be mixed with sand and distributed through a "shaker" that didnt really work for me.

Can i buy ground cover plants? Will the naturally spread on their own? If so when do i buy and plant them?

I want to mix these in certain areas of my property, not sure if i want to put up some sort of "borders", any suggestions so i can mow around them, or keep them from spreading otherwise?

Any tips on planting ground cover would be appreciated. Ty

I recommend getting dutch clover. Maybe a 50lbs bag for $120.
Plant them in the fall/early September and in early spring.
I would also water them right after you plant them.
Dutch clover fixes 200lbs of nitrogen per acre, and they only get to 9inches, so they are easy to maintain

I would also plant Daikin radish. Their root will help compacted soil, you can plant them now,

For both of these I would just broadcast them and then take the soil and water. I much rather buy 2x or 3x the seeds in bulk for cheap vs trying some special sand or spreader.

Those are the two main support species that I like.

I also like broadcasting things in the garlic/chive/onion family, but those I plant in a more coordinated manner. Another support species family is mint/thyme and then cilantro/dill family

Thank you for the support plants, that will help with my other post. I have some attractive ground covers i was interested in, i am mostly interested in how to plant them? Seeds? That seemed a real task. Any ideas?

We really need to know what plants you are wanting. How to plant your seeds will often depend on the type of plant.

Creeping thyme is the only ground cover that I know you can buy as transplants.  There may be some other herbs that can be used as ground cover and as transplants, I am just not familiar with any.

Here are some threads that might interest you:

https://permies.com/t/33676/permaculture-projects/Creeping-Thyme-Thymus-serpyllum

https://permies.com/t/158806/Creeping-thyme-pros-cons

Okay so basically its seeds....when i take a look again at what im interested in, ill post it here for some help. Thanks