Rhododendron, Rhododendron pachysanthum 'crosswater', Close up showing green flower bud.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Flame vine, Pyrostegia venusta, Dramatic close up of the orange tubular flowers.

Phlox, Meadow phlox, Phlox maculata 'Natascha', Close view of the pink and white striped flower.

Phlox, Phlox paniculata 'miss pepper', Close up showing pink flower cluster.

Feathertop, Pennisetum villosum, Close up showing spiky detail.

Feathertop, Pennisetum villosum, Close up showing spiky detail.

Cactus, Mexican Giant Cardon, Pachycereus pringlei, Close up blue duotone colour.

Cactus, Mexican fence post cactus, Pachycereus Marginatus viewed from below against a blue sky with wispy clouds.

Orchid, Close up of white flowers with pink centres.