Allium, Allium christophii, Close up of section of flowerhead growing outdoor.

Lupin, Lupinus, Purple coloured flowers growing outdoor.

Lupin, Lupinus, Purple coloured flowers growing outdoor.

Purple toothwort, Lathraea cladestina, Rare parasitic plant living on willow tree roots, North Yorkshire, April.

Purple toothwort, Lathraea cladestina, Rare parasitic plant living on willow tree roots, North Yorkshire, April.

Maple, Japanese maple, Acer palmatum, Leaves showing autumn colours, North Yorkshire, October.

Wheat, Winter wheat, Triticum aestivum, Side view of cereal crop gowing outdoor.

Wheat, Winter wheat, Triticum aestivum, Side view of cereal crop gowing outdoor.

Rhododendron, Rhododendron cultivar, Mass of white flowers growing outdoor.

Blue-eyed grass, Sisyrinchium 'Californian Skies', Delicate blue coloured flowers growing outdoor.

Rose 'Laure Davoust', Rosa 'Laure Davoust', Mass of pink coloured flowers growing outdoor.

Rhododendron, Rhododendron ÔHydon RodneyÕ, Mass of mauve coloured flowers growing outdoor.