Sure you can buy something plastic and fancy (and expensive) from a home improvement store - but where's the fun in that?
I saw this tutorial on Pinterest:
AND it doesn't require digging a hole or cementing the post in the ground!
This was the ONLY tutorial that I found that suggested using a " post holder spikey thing". (I love that - it's exactly what I would have called it!)
Home Depot calls it:
|Link to site
and a special item I found while picking the rest of the stuff up:and...
I wish my hose was the same colour, but let's be realistic right?