posted 13 years ago
Another option for really hard or frozen ground, and it might be easier....just carry around an old fashioned hand crank drill (a brace, not the eggbeater style) with a 3/8 masonry drill bit in it...it's pretty quick to drill a hole in hard frozen ground or hardpan and the posts set nice and solid, and if you have a lot of ground to cover you don't have to carry concrete stuff around.
One drawback...in wet areas when you get a bunch of freeze / thaw cycles you can end up with some posts 'permanently' frozen in until spring...sometimes 'sproinging' them like one of those door stopper springs will vibrate them loose...