IMO bigger issue is the landscaping you can always stin the posts and BTW this was answered in your ther post . Duplicate posts are a PITA for us and you.

Landscaping will be later. The posts have JUST been wrapped with Cedar. Altogether, a separate question. The other posts were white.

The other post was about how wide the cedar posts should be

" What kind of stain should I use and what color do you think the posts are cedar? "

Not going to want to hear this but paint them white to match the trim.