Like skyscrapers in a city, columnar stalks of organ-pipe cactus (Lemaireocereus marginatus) tower above ground-hugging blue-chalksticks (Senecio serpens). Isabelle Greene created this composition in the Silver Garden at Longwood Gardens in Kennett Square, Pennsylvania.

Welcome to the Fine Gardening Garden Photo of the Day blog! Every weekday we post a new photo of a great garden, a spectacular plant, a stunning plant combination, or any number of other subjects. Think of it as your morning jolt of green.

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