Boston ivy, Parthenocissus tricuspidata, close-up detail of red leaves on the climbing plant.

Boston ivy, Parthenocissus tricuspidata, close-up detail of red leaves isolated in shallow focus on the climbing plant against green leaves.

Boston ivy, Parthenocissus tricuspidata, close-up detail of green leaves turning red in autumn on the climbing plant.

Boston ivy, Parthenocissus tricuspidata, close-up detail of a single fallen red leaf on grey stone in the autumn.

Lettuce, Lactuca sativa, close-up of mixed varieties of the green leaf salad vegetable.

Sage, Salvia officinalis, close up of the dense green leaves of the garden herb.

Amaryllis, Hippeastrum, Close-up detail of a red flower with yellow stamen.

Amaryllis, Hippeastrum, Close-up detail of a red flower with yellow stamen.

Amaryllis, Hippeastrum, Close-up detail of a red flower with yellow stamen.

Echinacea, Purple Cone Flower, Purperea Magnus.

Yellow Cactus flower.

Clivia, close up of water droplets on orange petals.