Genista depressa – is a prostrate broom relative that will make a bright yellow bubbling pool composed of pea flowers that completely cover the shrub in May. Anne Spiegel tells me that “this is one fabulous shrub. [It] sets copious small black pods with lots of seed”. The black seed pods dangling among the virtually evergreen branches will afford another modest season of interest. It will be beautifully employed draping over a wall, planted between or in front of boulders or, indeed, in any xeric situation with succulents, agaves, yuccas and cacti. One tough customer, it demands well-drained scrabble mixed with sandy soil and lime in full blazing sun. Genista depressa makes a deep root system which girds it against drought and like Daphne should be allowed root run. If you plant this rock garden beauty in a too-rich and moisture retaining mix it will languish and rot. Cutting grown.