bougainvillea bougainvillea glabra bush bushes flower flowers garden landscape landscaping paper flower plant plants spring thorny tree trees tropical vine vines woody biology Common Hazel forest hazel nature bulbs colors colours England english Great Britain petals tulips grass grass-land green lea mead meadow poppy red blue hepacitca nobilis purple pakistan tariq hussain soomro workshop bulb fresh hyacinth soft young orange poppies colourfull magnolia