It’s spring, which means one thing: the RHS Chelsea Flower Show is back, with a raft of new gardens for visitors to enjoy.

Trailing lobelia, edging lobelia, annual lobelia Latin name: Lobelia erinus ‘Riviera Sky Blue’ Plant type: Annual Plant size: ...

Do you have a wall in the garden that looks a bit plain on its own? Grow this trailing ground cover on top and let its leaves and blooms cascade down the wall.