Coreopsis Flowers Edible. It is hardy to zone UK 3. A yellow red with an acid mordant dye is obtained from the flowers and is used to dye cloth.
It is hardy to zone UK 4. Commonly known as tickseed coreopsis comes in many species and varieties. 15062010 Coreopsis grandiflora wont quit despite heat or lack of water.
17062021 Lanceleaf coreopsis plants are seldom browsed by deer but you can plant Threadleaf coreopsis with even greater confidence as it rarely receives even a nibble by passing deer.
02012018 Many coreopsis remain in full flower most of the summer especially if deadheaded. Although typically seen in shades of yellow and gold many species also contain red bronze and burgundy and have been commonly used as natural dyes. Just plant and enjoy. It is in leaf from April to November in flower from June to September and the seeds ripen from June to October.