Rose mallow, Hibiscus syriacus 'Blue Bird', purple blue buds opening among green leaves on a shrub.

Rose mallow, Hibiscus syriacus 'Blue Bird', purple blue flower and bud growing on a shrub against a green background.

Rose mallow, Hibiscus syriacus 'Blue Bird', single purple blue flower growing on a shrub.

Rose mallow, Hibiscus syriacus 'Blue Bird', purple blue flower and buds growing on a shrub against a green background.

Rose mallow, Hibiscus syriacus 'Blue Bird', single purple blue flower growing on a shrub against a green background.

Rose mallow, Hibiscus syriacus 'Blue Bird', purple blue bud opening among green leaves on a shrub.

Rose mallow, Hibiscus syriacus 'Blue Bird', purple blue buds opening among green leaves on a shrub.

Plants, Flowers, White Hibiscus flower with detail of vivid red pistil and stamen.

Plants, Flowers, White Hibiscus flower with detail of vivid red pistil and stamen.

Mexico, Veracruz, Papantla, Pink hibiscus flower.

Marquesas Islands. Ua Huka. Dancer wearing umuhei head dress of mint hibiscus and frangipani flower and with tattoo of swordfish between her shoulder blades.