Antiquity Cosmos

Cosmos bipinnatus 'Antiquity' is a named annual cosmos with upright stems, finely divided green leaves, and crimson to burgundy flowers that age toward reddish pink. Published sizes differ: NC State lists the selection at 1–2 feet, while RHS gives a broader 0.5–1 metre range for height and spread, so allow flexible spacing and expect local growing conditions to affect its final size. ## Garden Use Use Antiquity in sunny flower borders, cottage gardens, containers, and cutting beds. Its long-stemmed, daisy-like flowers bring summer color, and the broader species is used in wildlife gardens and can attract pollinators, birds, and butterflies. RHS lists full sun and several soil textures, while NC State recommends at least a half day of direct sunlight for cosmos generally. ## Growing Conditions A moderately fertile, moist but well-drained bed suits this selection. Keep newly sown seed moist through germination; established cosmos can manage occasional dry conditions, though flowering is best with steady care. Choose a sheltered position if local winds commonly bend stems. ## Seasonal Display Flowers open in summer, with burgundy and crimson tones shifting toward reddish pink as they mature. Finely cut green foliage remains a light background for the flowers. Sources: [RHS profile for 'Antiquity'](https://www.rhs.org.uk/plants/264312/cosmos-bipinnatus-antiquity/details) and [NC State Extension Cosmos guide](https://plants.ces.ncsu.edu/plants/cosmos-bipinnatus/). ## Maintenance Deadhead faded flowers to encourage continued bloom and keep the plant tidy. Leave a few seedheads to ripen if self-sowing is wanted; remove them before dispersal if volunteer seedlings are not desired.