Orchid, Blue vanda with pale blue petals marked with checkerboard pattern at the 2011 Orchid Festival in Chiang Mai, Thailand.

Orchid, Blue vanda with pale blue petals marked with checkerboard pattern at the 2011 Orchid Festival in Chiang Mai, Thailand.

Frangipani. Pink flowers and lance shaped leaves of Plumeria rubra growing in Phrao, Chiang Mai, Thailand.

Hibiscus rosa-sinensis cultivar. Close up of white flower with detail of vivid red pistil and stamen.

Hollyhock, Alcea rosea cultivar. Flower spikes with pink flowers against blue sky. Thailand, Chiang Mai, San Kamphaeng,

Hollyhock, Alcea rosea cultivar. Flower spike with deep, pinkish red flowers. Thailand, Chiang Mai, San Kamphaeng,

Magnolia soulangeana. Close up of tulip-like white flowers flushed pink at the base against blue sky.

Magnolia soulangeana. Close up of tulip-like white flowers flushed pink at the base against blue sky.

Magnolia soulangeana. Close up of tulip-like white flowers flushed pink at the base, tree branches and blue sky beyond.

Spurge, Euphorbia characias wulfenii. Shrub with clustered leaves and large rounded head of small greenish yellow flowers held within cupped bracts.

Smoke bush, Cotinus coggygria Grace. Water droplets on dark purple leaves.

Sago palm, Cycas revoluta. Rain droplets on pinnate leaves of Sago Palm.