More Information
| Botanical Name |
Centaurea cyanus |
| Seeds Per Pack |
50 |
| Life Cycle |
Annual |
| Min. Time to Germinate |
7 Days |
| Max. Time to Germinate |
15 Days |
| Depth to Sow Seeds |
1/4 in. |
| When to Sow |
Indoors 6-8 weeks before last spring frost, Outdoors after all danger of spring frost is past |
| Growing Height |
18-24 in. (45-60 cm) |
| Plant Spacing |
9-12 in. (22-30 cm) |
| Hardiness |
N/A |
| Sun Exposure |
Full Sun |
| Danger |
N/A |
| Bloom Color |
Dark Purple/Black |
| Bloom Time |
Late Spring/Early Summer, Late Summer/Early Fall, Mid-Summer |
| Foliage |
Herbaceous, Silver/Gray, Velvet/Fuzzy-Textured |
| Other Details |
Average Water Needs; Water regularly; do not overwater, This plant is attractive to bees, butterflies and/or birds |
| Soil pH Requirements |
6.6 to 7.5 (neutral), 7.6 to 7.8 (mildly alkaline) |
| Propagation Methods |
From seed; direct sow after last frost, From seed; direct sow outdoors in fall, From seed; sow indoors before last frost, From seed; winter sow in vented containers, coldframe or unheated greenhouse |
| Seed Collecting |
Collect seedhead/pod when flowers fade; allow to dry |
Bachelor’s Button Jubilee is a beloved heirloom cornflower that blankets the garden in true periwinkle-blue and white, frilly small blooms, an All-America Selections silver medal winner from 1937 that still earns its keep today. Semi-dwarf plants typically stand about 16 to 24 inches tall with airy silver-green foliage, blooming generously from late spring into summer and even longer with regular deadheading. Easy from seed and tolerant of poor soil, light frosts when young, and dry spells once established, it is a dependable choice for sunny borders, cutting beds, and pollinator plantings. The edible petals add a confetti-bright touch to salads and desserts, and the flowers dry beautifully for long-lasting arrangements. Let a few heads mature, and it will often self-sow, returning with another wave of cheerful blue the following season.
