There's a huge planter at the end of our road. It's got too rather too many trees in it, and I think it probably sits on old tarmac (40 year old tarmac). It is VERY dry. Even weeds do badly in it - almost nothing grows there in the summer. A neighbour tried nigella and nasturtiums, but few grew.
We did better with bulbs earlier in the year - tulips and daffodils.
It would be lovely to get something beautiful there this year - any ideas?? Needs to be cheap, maintenance free, and not the sort of thing that rubbish clings to!