Paul Hervey-Brookes uses Geum 'Prinses Juliana' and Carex flagellifera 'Auburn Cascade' in his design for Brand Alley (above), picking out the colour in the wall. He isn't the only designer to embrace the warmth; the WaterAid artisan garden is ablaze with marigolds.
Elsewhere, orange is used in a more understated way. Here, in Ulf Nordfjell's garden for Laurent-Perrier, the warm colour of the travertine stone is picked up in Lilium 'Orange Marmalade' and Iris 'Beverly Sills'.
In Chris Beardshaw's garden for Arthritis Research UK, Eschscholzia californica unfurl alongside Iris 'Supreme Sultan' (which will soon be showing its true colours - deep orange and purple).
Stoke-on-Trent's show garden has a palette focussing on orange, apricot and copper.
In Scape Design's garden, After the Fire, the contrast between the orange pool, terracotta seats, the vivid green new leaves and the charred tree trunks is striking.
Even that 1970's must-have orange toy, the Space Hopper, made a comeback (I spotted two) - this one is in the NSPCC garden.
Orange can be a difficult colour to use in the garden because it clashes so readily with other colours and is so demanding of our attention. Some people find this quality stimulating; others find it too challenging. Used well, it can link plants, hard landscaping and buildings together. Its propensity to clash with other colours such as strong, hot pinks can be exciting, yet it can be used more subtly to enhance bronze foliage.
|Chris Beardshaw's Arthritis Research UK garden|
It may be challenging, but a twist of orange really can lift a planting scheme. It certainly worked its magic at Chelsea this year.