Grapes in containers

Is anyone growing grapes in containers?  

I’d like to have a couple on my front porch. I have two young Mars Seedless that I need to dig up. They only have about 3’ of vine. It’s not a vigorous variety. I have some empty Earthboxes. I think they hold two cubic feet of soil and they have a water reservoir that holds a gallon or so. Think they might be big enough? I have some tubs that cattle minerals came. They are pretty big and ugly. No water reservoir. I could paint them. I think I saw instructions on making water reservoirs. I really like the Earthboxes though. Maybe I should use them a year or two then move to bigger pots?

Here’s my grapevine planted as a baby 2 years ago. It was bigger but I pruned it last winter.

As you can see the container’s not big at all. In my Mediterranean climate the rain takes care of it during the six cold months then during the drought I water it once every few days.

All my grapevines planted in the ground died their first year. They were all west facing and couldn’t handle our very harsh afternoon sun, even with shadecloth. This grapevine’s east facing, amd that really helped it thrive.

I plan to use pot-grown grapevines all along the paving of my east-facing wall. Vineyards trim their vines small to encourage more fruit production, so it seems an ideal thing to grow in pots.

I filled this pot with just leaf mulch, compost and clay dirt. It produced lots of potential grapes the very next season but I picked them all off because I read they won’t taste good. This year I fertilised it but added way too much nitrogen and so only have a two bunches of grapes growing on it. They seem to thrive on neglect!