hi jeff,

8 inches would be o.k. if the raised are at least 3 foot or longer the roots will grow horizonaley,regards.

les

Thanks for your response, Les.

I'm looking at a raised cedar container that is 6 feet long x 2 feet wide x 8 inches deep. It has a liner that allows water to drain.
- Jeff

You might want to try something like this. This link is for just the trolley, the grow box and trellis are separate. I've also seen 3x3 planters on legs. Do you know someone who could build you one?

Here is a link that might be useful: Gardener's Tomato Trolley

The Trolley is another good idea. Thanks for pointing it out. I can do a certain amount of building things myself. It's getting down to ground level that is the hardest part for me. Now that I see some of these helpful products, I might be able to build something similar.

- Jeff

I put an old fiberglass bathtub liner on cinder blocks this year because I have the same problem. I've had a fusion @ L5-S1 and have sciatica. I've got another one for a fall garden I haven't filled yet and think I'm going to raise it even higher. I got them free and have access to several more so if everything goes well I will do my entire garden this way next year. So far the 4 tomato plants and cucumbers I have in one are doing well. I filled it with sphagnum peat moss and perlite after drilling a few holes in the bottom. I foliar fertilize with fish emulsion every week and use a general purpose fertilizer in the soil around every 4 to 6 weeks. I also have 2 tomato plants in 5 gallon buckets that are out producing my in ground plants. Don't know if they will keep going the entire season though.