What colour is the sky? A strange question too a gardener perhaps but there are good gardening reasons for asking.

• The standard answer from a young child would probably blue and that is what we want in summer as a sign of good weather. In winter it may indicate a spell of sharp frosty days. The sky takes on a deeper blue hue that saturates colours from mid morning to late afternoon.
• Harsh mid day light produces high contrast between light and shadow. This depend on weather condition, because on a cloudy day the light is diffused.
• An overcast sky is a result of no direct sunlight moisture in the atmosphere or air pollution that causes haze and the sky to appears to be pale blue or even milky white.
• In the early morning or at sunset your sky can be red, orange, purple and/or yellow  but where I live, too often it seems  to be grey. These colour  arise from the absorption or not of various parts of the  spectrum. This also has a profound effect on how you see the colour of flowers.
• Blue and white colours are called cool temperatures that tend to recede in a picture. The warm colours of yellow through to red come forward to the viewer.
• Clouds are seldom if ever white, have a very close look and you will see lots of shades. Grey may predominate but the variety of shades will be multitudinous.
• Colour temperature is measured in Kelvins

Other Sky and Plant Pictures

Cloud reflecting rose tints against a silhouette .

Kniphofia against a violet sky

Apple Blossom contrasting against a sky

Rhem

Honeysuckle