Front Garden at Bury Court, photo Clive Nichols. A planting of silvery Stachys 'Big Ears', the dark Sedum 'Matrona', phlox 'Rosa Pastell', with Echinops ritro 'Veitch's Blue' to the rear (Left) and Agastache foeniculum (Right).
Great idea for a symbolic water presence. Sinuous shapes represent the water element energy in feng shui. Having them in the garden allow incoming money flow, especially if they're present in front of the main entrance of the house.