Asian Australian blossoms botanical botany buds cheerful copperpod ecology flowers gardening golden flamboyant green happy native nectar outdoors Peltophorum pterocarpum petals radhachura spring summer sunny tree yellow yellow flamboyant yellow flame tree yellow Poinciana bright colorful colourful flamboyant garden head nature orange plant rich sunflowers flowerhead Caesalpinia china delicate different extraordinary extravagant extrovert flower graceful long petal red showy stamen strange unusual agriculture allotments blooms cultivars diversity England english gardens gladioli Great Britain grow hobby horticulture mauve mixed perennials pink plants plots various vegetables