because, they are mainly wind pollinated and don't require bright flowers to attract insects
flowers
the flowers people buy reproduce and send out other seeds to plant flowers
To attract insects and encourage pollination to result in more flowers growing.
Many colors have brightly-colored flowers; the purpose of this is to attract insects, which assist the plant in pollination.
Many colors have brightly-colored flowers; the purpose of this is to attract insects, which assist the plant in pollination.
Most bees only go for brightly coloured flowers etc: roses
fresh brightly coloured adult flowers attract most bees
Nemesia
Brightly coloured petalsThe smellNectar
Flowers are either brightly coloured or scented or both to attract the insects that pollinate them.
Both "brightly-coloured" and "brightly coloured" are correct in British English, with the former being more typical. In American English, "brightly colored" without a hyphen is commonly used.
the brightly colored petals help attract some agent like bees and insect which helps the flowers to polinate