Posted: 22/06/2017 at 06:57
Hi, couple of questions so we can make hopefully useful suggestions
How much sun, if any, does it get and at what time of day?
When you say rocks, do you mean it's stoney or that the soil is sitting above rubble/real rock - if the latter how deep is the soil?
You say your plants died - what sort of plants did you try (that might help indicate what the soil is like)?
And last question, promise - how long and wide is the bed, it's very hard to judge sizes from a photo