annual Asteraceae companion planting flora florets flowers garden flowers garden marigolds garden plants herbaceous plants historical horticulture orange perennial pungent ruffled petals sunflower family symbolic symbolism Tagetes yellow "nose-tweaker" "nose-twister" common companion plants edible fast-growing flower flowering herbaceous herbaceous flowering plant nasturtium ornamental ornamental flower ornamental salad ingredient plant prolific tropaeolum bee companion-plants golden herbaceous-flowering-plant ornamental-flower ornamental-salad-ingredient green greenery leafe leaves surface texture textures veined veins bright light sunlight sunshine beta carotene biennial plant colorful colourful companion plant cut daucus carota dietary fibre fibre firm folate healthy inside lines popular raw root vegetable satisfying sativus skin sliced smooth snack sugar sweet taproot tasty uncooked vegetable vitamin A widespread