Bidirectional Flower Color and Shape Changes Allow a Second Opportunity for Pollination Current Biology, 19 (11), 919-923 DOI: 10.1016/j.cub.2009.03.070 More on flowers: Bumpy petals help bees get ...

Olive green above, dusky purple below -- these are the leaves of Arabian lilac, an evergreen shrub that provides year-round color in the garden. Arabian lilac (Vitex trifolia ‘Purpurea’) is ...

This native flower has delicate clusters of violet, lilac, and lavender blooms that will bring birds, butterflies, and other ...

They produce small flowers in shades of pink, white, blue and lilac. Heuchera . These evergreen herbaceous plants come in a ...

Plant a border full of flowers, texture and height with this how-to guide for year-round interest and colour. Achieve year-round interest with this how-to guide. Jump to content ...

All flowers changed colour and closed down after bee visits, but those that had received little or no pollen were much more likely to reopen, while those that got their fair share stayed shut.