On Thursday, March 24, 2016 at 3:35:21 PM UTC-4, Bob Gibbons wrote:
On Thu, 24 Mar 2016 05:14:15 -0700 (PDT), mzivley- -hotmail.com wrote:

http://www.mcmaster.com/#earth-anchors/=11oe1od

The 15" anchors won't do the job, but the 48" x 6" anchors will survive almost
anything as long as the ground in your area is soft enough to be able to screw
these in. Very inexpensive.

On the off chance that not everyone is aware of the key to screwing in
these ground anchors in hard soil ...

Take a long piece of rebar, about as long as the anchor. Slowly hammer
this into the ground at the selected spot. Alternately hammer, then
withdraw, slowly extending the pilot hole deeper. When the "pilot
hole" is almost as deep as the anchor will eventually go, pour water
down the hole, wait a few minutes, and repeat a few times.

Aim is to saturate the walls of the pilot hole, making insertion of
the screw anchor easy. When the water later evaporates, the anchor
will be firmly locked.

Bob

If you're in the Northeast US (or anywhere there was the end of an ice sheet), you WILL hit ton's of rocks in any hole deeper than ~6"...... say "thanks" to the last ice age.....

Your method may work very well in other locations.....