Not a problem Ed,
Here you can see 2 of the tent spikes that I used to secure the base to the ground. The hole that I cut into the flower pot, I used a box cutter knife and made the hole just a little tight so that the post would not move around in the pot.
I used a 1/2" drill bit to make the holes for the spikes, again they are a little tight.
10" spikes should hold pretty well at the front of the campsite.
A little hard to see in this pic but I did no extra work to hold the post centered in to the pot. I was thinking of taking and cutting a 2x6 to fit up inside the pot
about half way up with a hole drilled through and then securing with small sheet rock screws from the outside, but this works rather well.
The knock out at the base of the pole was there when I bought it, it is for a dusk to dawn sensor. I cut the pole even with the knock out taped my cord out of the way, that way when I place my lamp where I would like it, I simply push down on the pole and twist it into the ground, which will use the ground for support also.
The inside of the pot with the main hole in the middle for the post and the for holes for the spikes.
I used a 13" Dia. x 11" high plastic pot. Lowe's had the same pot but bigger and I decided to go with the medium.
The pole is a lamp post, also bought from Lowe's and came with the flag holder also. The box said heavy duty construction, it is rugged and does not weigh all that much. For the light in side I used a green 40 watt light bulb.