Species Centaurea cyanus | Known

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Names

Common Names: Common names of Centaurea cyanus, in order of most common usage: Cornflower, Bachelor’s-button, Bluebottle, Bluebonnet

Growth

Height: 12-36 inches
Spread: 6-24 inches
Growth Rate: Medium

Appearance

Bloom Color: Blue, pink, purple, and white
Foliage Color: Green
Fall Foliage Color: No fall foliage color reported

Environment

Hardiness Zones: Zones 2-11
Sunlight Requirements: Ideally full sun, tolerates partial shade
Soil Type: Well-drained, moderately fertile soil with organic matter and moisture retention capacity
Soil Drainage: Well-drained soil
Soil pH: 6.0–7.8

Lifecycle

Lifecycle: Annual
Leaf Lifecycle: Deciduous
Seasons of Interest: Summer and Fall
Bloom Time: Summer

Reproduction

Propagation Methods: Seeds

Wildlife

Attracts Wildlife: Attracts bees, butterflies, hummingbirds, and other pollinators; supports birds through seed consumption.

References

Taxonomy

Taxonomic Rank: Species
Author: L.
Publication: Sp. Pl. : 911 (1753)

Superior Taxa

Kingdom: Plantae
Subkingdom: Pteridobiotina
Phylum: Angiosperms
Order: Asterales
Family: Asteraceae
Subfamily: Carduoideae
Tribe: Cardueae
Subtribe: Centaureinae
Genus: Centaurea

Synonyms

Cyanus vulgaris Centaurea pulcherrima Cyanus dentato-folius Centaurea cyanus var. cyanus Jacea segetum Cyanus segetum Centaurea umbrosa Leucacantha cyanus Centaurea cyaneum Centaurea cyanus var. denudata Centaurea cyanus subsp. coa Centaurea rhizocephala Cyanus cyanus Centaurea concinna Centaurea lanata Centaurea cyanus subsp. cyanus Centaurea cyanocephala Centaurea segetalis Centaurea concinna Cyanus arvensis Centaurea pulchra

References

Taxonomic data from World Flora Online, accessed June 20, 2024