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

Tulip, Tulipa 'Rigas Barikades', Tulipa 'Rigas Barikades', Detail of orange coloured flowers growing outdoor.

Globeflower, Trollius cultorum, Side view of yellow coloured flower growing outdoor.

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

Rose 'Peace' Rosa 'Peace', Pink fringed flower 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.

Cherry, Manchurian cherry, Prunus maackii 'Amber Beauty', White flowers on plant growing outdoor.

Yunnan catchfly, Lychnis yunnanensis, Small pink flowers growing outdoor.

Yunnan catchfly, Lychnis yunnanensis, Small pink flowers growing outdoor.

Tulip tree 'Aureomarginatum', Liriodendron tulipifera 'Aureomarginatum', Backlit yellow leaves against a blue sky.

Tulip tree 'Aureomarginatum', Liriodendron tulipifera 'Aureomarginatum', Backlit yellow leaves against a blue sky.